Biggest changeOptions will be exercised only if we believe return on invested capital targets can be met over the long term. 43 The following table summarizes our anticipated fleet count by year, as of the date of this filing: Actual Fleet Count Anticipated Fleet Activity (a) Aircraft Dec 31, 2021 Dec 31, 2022 2023 Changes Dec 31, 2023 2024 Changes Dec 31, 2024 2025 Changes Dec 31, 2025 B737-700 Freighters 3 3 — 3 — 3 — 3 B737-800 Freighters — — 1 1 1 2 — 2 B737-700 11 11 — 11 — 11 — 11 B737-800 61 61 (2) 59 — 59 — 59 B737-900 12 12 — 12 — 12 — 12 B737-900ER 79 79 — 79 — 79 — 79 B737-8 — — 3 3 7 10 — 10 B737-9 11 37 34 71 12 83 5 88 B737-10 — — — — 6 6 21 27 A320 30 12 (12) — — — — — A321neo 10 10 (10) — — — — — Total Mainline Fleet 217 225 14 239 26 265 26 291 Q400 operated by Horizon 32 11 (11) — — — — — E175 operated by Horizon 30 33 8 41 3 44 3 47 E175 operated by third party 32 42 — 42 — 42 1 43 Total Regional Fleet (b) 94 86 (3) 83 3 86 4 90 Total 311 311 11 322 29 351 30 381 (a) Anticipated fleet activity reflects intended early retirement and extensions or replacement of certain leases, not all of which have been contracted or agreed to by counterparties yet.
Biggest changeThe following table summarizes our anticipated fleet count by year, as of December 31, 2023: Actual Fleet Count Anticipated Fleet Activity Aircraft Dec 31, 2022 Dec 31, 2023 2024 Changes Dec 31, 2024 2025 Changes Dec 31, 2025 2026 Changes Dec 31, 2026 B737-700 Freighters 3 3 — 3 — 3 — 3 B737-800 Freighters — 1 1 2 — 2 — 2 B737-700 11 11 — 11 — 11 — 11 B737-800 61 59 — 59 — 59 — 59 B737-900 12 12 — 12 — 12 — 12 B737-900ER 79 79 — 79 — 79 — 79 B737-8 — 1 7 8 12 20 — 20 B737-9 37 65 16 81 — 81 — 81 B737-10 — — — — 11 11 19 30 A320 12 — — — — — — — A321neo 10 — — — — — — — Total Mainline Fleet 225 231 24 255 23 278 19 297 E175 operated by Horizon 33 41 3 44 3 47 3 50 E175 operated by third party 42 42 — 42 1 43 — 43 Q400 operated by Horizon 11 — — — — — — — Total Regional Fleet 86 83 3 86 4 90 3 93 Total 311 314 27 341 27 368 22 390 We intend to finance future aircraft deliveries and option exercises using cash flow from operations or long-term debt. 46 Fuel Hedge Positions In the fourth quarter of 2023, we suspended our crude oil hedge program.
The measure is also the subject of frequent questions from investors. • Adjusted income before income tax (and other items as specified in our plan documents) is an important metric for the employee annual incentive plan, which covers the majority of employees within the Alaska Air Group organization. • Disclosure of the individual impact of certain noted items provides investors the ability to measure and monitor performance both with and without these special items.
The measure is also the subject of frequent questions from investors. 36 • Adjusted income before income tax (and other items as specified in our plan documents) is an important metric for the employee annual incentive plan, which covers the majority of employees within the Alaska Air Group organization. • Disclosure of the individual impact of certain noted items provides investors the ability to measure and monitor performance both with and without these special items.
We believe this is the best measure of the effect that fuel prices are currently having on our business as it most closely approximates the net cash outflow associated with purchasing fuel for our operations. Accordingly, many industry analysts evaluate our results using this measure, and it is the basis for most internal management reporting and incentive pay plans.
We believe this is the best measure of the effect that fuel prices are currently having on our business as it most closely approximates the net cash outflow associated with purchasing fuel for our 40 operations. Accordingly, many industry analysts evaluate our results using this measure, and it is the basis for most internal management reporting and incentive pay plans.
This section also includes forward-looking statements regarding our view of 2023. • Liquidity and Capital Resources —an overview of our financial position, analysis of cash flows, sources and uses of cash, contractual obligations and commitments, and off-balance sheet arrangements. • Critical Accounting Estimates —a discussion of our accounting estimates that involve significant judgment and uncertainties.
This section also includes forward-looking statements regarding our view of 2024. • Liquidity and Capital Resources —an overview of our financial position, analysis of cash flows, sources and uses of cash, contractual obligations and commitments, and off-balance sheet arrangements. • Critical Accounting Estimates —a discussion of our accounting estimates that involve significant judgment and uncertainties.
See “ Results of Operations ” below for further discussion of changes in revenue and operating expenses as compared to 2021, and our reconciliation of non-GAAP measures to the most directly comparable GAAP measure. A glossary of financial terms can be found at the end of Item 1.
See “ Results of Operations ” below for further discussion of changes in revenue and operating expenses as compared to 2022, and our reconciliation of non-GAAP measures to the most directly comparable GAAP measure. A glossary of financial terms can be found at the end of Item 1.
For a discussion of the year ended December 31, 2021 compared to the year ended December 31, 2020, please refer to Part II, Item 7, "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the year ended December 31, 2021.
For a discussion of the year ended December 31, 2022 compared to the year ended December 31, 2021, please refer to Part II, Item 7, "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the year ended December 31, 2022.
Our aircraft fuel expense can be volatile based on fuel consumption and because it includes these gains or losses in the value of the underlying instrument as crude oil prices and refining margins increase or decrease. Raw fuel expense is defined as the price that we generally pay at the airport, or the “into-plane” price, including taxes and fees.
Our aircraft fuel expense can be volatile because it includes these gains or losses in the value of the underlying instrument as crude oil prices and refining margins increase or decrease. Raw fuel expense is defined as the price that we generally pay at the airport, or the “into-plane” price, including taxes and fees.
Income Taxes For federal income tax purposes, the majority of our assets are fully depreciated over a seven-year life using an accelerated depreciation method or bonus depreciation, if available. For financial reporting purposes, the majority of our assets are depreciated over 15 to 25 years to an estimated salvage value using the straight-line basis.
Income Taxes For federal income tax purposes, the majority of our property and equipment are fully depreciated over a seven-year life using an accelerated depreciation method or bonus depreciation, if available. For financial reporting purposes, the majority of our assets are depreciated over 15 to 25 years to an estimated salvage value using the straight-line basis.
Risk Factors.” This overview summarizes the MD&A, which includes the following sections: • Year in Review —highlights from 2022 outlining some of the major events that happened during the year and how they affected our financial performance. 30 • Results of Operations —an in-depth analysis of our revenue by segment and our expenses from a consolidated perspective for the most recent two years presented in our consolidated financial statements.
Risk Factors.” This overview summarizes the MD&A, which includes the following sections: 34 • Year in Review —highlights from 2023 outlining some of the major events that happened during the year and how they affected our financial performance. • Results of Operations —an in-depth analysis of our revenue by segment and our expenses from a consolidated perspective for the most recent two years presented in our consolidated financial statements.
A hypothetical 1% change in the amount of outstanding miles estimated to be redeemed would result in an approximately $9 million impact on annual revenue recognized.
A hypothetical 1% change in the amount of outstanding miles estimated to be redeemed would result in an approximately $10 million impact on annual revenue recognized.
With call options, we are hedged against volatile crude oil price increases and, during a period of decline in crude oil prices, we only forfeit cash previously paid for hedge premiums. We typically hedge up to 50% of our expected consumption.
With call options, we are hedged against volatile crude oil price increases and, during a period of decline in crude oil prices, we only forfeit cash previously paid for hedge premiums. We have historically hedged up to 50% of our expected consumption.
ANALYSIS OF OUR CASH FLOWS Cash Provided by Operating Activities Net cash provided by operating activities was $1.4 billion in 2022 compared to $1 billion in 2021. Cash provided by ticket sales and from our co-branded credit card agreement are the primary sources of our operating cash flow.
ANALYSIS OF OUR CASH FLOWS Cash Provided by Operating Activities Cash provided by operating activities was $1.1 billion in 2023 compared to $1.4 billion in 2022. Cash provided by ticket sales and from our co-branded credit card agreement are the primary sources of our operating cash flow.
In addition, we believe that all domestic carriers are similarly impacted by changes in jet fuel costs over the long run, so it is important for management (and thus investors) to understand the impact of (and trends in) company-specific cost drivers, such as productivity, airport costs, maintenance costs, etc., which are more controllable by management. • Cost per ASM (CASM) excluding fuel and certain other items, such as the Payroll Support Program grant wage offset and other special items, is one of the most important measures used by management and by our Board of Directors in assessing quarterly and annual cost performance. • CASM excluding fuel and certain other items is a measure commonly used by industry analysts and we believe it is an important metric by which they have historically compared our airline to others in the industry.
In addition, we believe that all domestic carriers are similarly impacted by changes in jet fuel costs over the long run, so it is important for management (and thus investors) to understand the impact of (and trends in) company-specific cost drivers, such as productivity, airport costs, maintenance costs, etc., which are more controllable by management. • Cost per ASM (CASM) excluding fuel and special items is one of the most important measures used by management and by our Board of Directors in assessing quarterly and annual cost performance. • CASM excluding fuel and special items is a measure commonly used by industry analysts and we believe it is an important metric by which they have historically compared our airline to others in the industry.
These agreements are dependent on suppliers' ability to obtain all required governmental and regulatory approvals, achieve commercial operation, and produce sufficient quantities of SAF. Financial commitments that have been contractually established and have met defined minimum obligations, including those related to Alaska Star Ventures, are included within Other obligations in the above table, as appropriate.
These agreements are dependent on suppliers' ability to obtain all required governmental and regulatory approvals, achieve commercial operation, and produce sufficient quantities of SAF. Financial commitments that have been contractually established and have defined minimum obligations, including those related to Alaska Star Ventures, are included within the CPA and other obligations row in the above table.
This section of the Form 10-K covers discussion of 2022 and 2021 results, and comparisons between those years.
This section of the Form 10-K covers discussion of 2023 and 2022 results, and comparisons between those years.
CPA and Other Obligations We have obligations primarily ass ociated with our capacity purchase agreements between Alaska and SkyWest, as well as other various sponsorship agreements and investment commitments. Leased Aircraft Return Costs For many of our leased aircraft, we are required under the contractual terms to return the aircraft in a specified state.
CPA and Other Obligations We have obligations primarily ass ociated with our capacity purchase agreements between Alaska and SkyWest, as well as other various sponsorship agreements and investment commitments. Leased Aircraft Return Costs For many of our leased aircraft, contractual terms require us to return the aircraft in a specified state.
As a result of these contractual terms, we will incur significant costs to return these aircraft at the termination of the lease. Costs of returning leased aircraft are accrued when the costs are probable and reasonably estimable, usually over the twelve months prior to the lease return, unless a determination is made that the leased asset is removed from operation.
As a result of these contractual terms, we may incur significant costs to return aircraft at the termination of the lease. Costs to return leased aircraft are accrued when the costs are probable and reasonably estimable, usually over the twelve months prior to the lease return, unless a determination is made to remove the leased asset from operation.
Taxable income and cash taxes payable in the short term are impacted by many items, including the amount of book income generated (which can be volatile depending on revenue and fuel prices), usage of net operating losses, whether "bonus depreciation" provisions are available, as well as other legislative changes that are beyond our control.
Taxable income and cash taxes payable in the short term are impacted by many items, including the amount of book income generated (which can be volatile depending on revenue and fuel prices, among other factors out of our control), whether bonus depreciation provisions are available, as well as other legislative changes beyond our control.
RESULTS OF OPERATIONS ADJUSTED (NON-GAAP) RESULTS AND PER-SHARE AMOUNTS We believe disclosure of earnings excluding the impact of aircraft fuel, the Payroll Support Program grant wage offset, and other special items is useful information to investors because: • By excluding fuel expense and certain other items, such as the Payroll Support Program grant wage offset and other special items, from our unit metrics, we believe that we have better visibility into the results of operations as we focus on cost-reduction and productivity initiatives.
RESULTS OF OPERATIONS ADJUSTED (NON-GAAP) RESULTS AND PER-SHARE AMOUNTS We believe disclosure of earnings excluding the impact of aircraft fuel and special items is useful information to investors because: • By excluding fuel expense and special items from our unit metrics, we believe that we have better visibility into the results of operations as we focus on cost-reduction and productivity initiatives.
Raw fuel prices are impacted by world oil prices and refining costs, which can vary by region in the U.S. Raw fuel expense approximates cash paid to suppliers and does not reflect the effect of our fuel hedges. Aircraft fuel expense increased $1.4 billion, or 109%, compared to 2021.
Raw fuel prices are impacted by world oil prices and refining costs, which can vary by region in the U.S. Raw fuel expense approximates cash paid to suppliers and does not reflect the effect of our fuel hedges. Aircraft fuel expense decreased $27 million, or 1%, compared to 2022.
ADDITIONAL SEGMENT INFORMATION Refer to Note 13 to the consolidated financial statements for a detailed description of each segment. Below is a summary of each segment's profitability. Mainline Mainline operations reported an adjusted pretax profit of $855 million in 2022, compared to an adjusted pretax loss of $179 million in 2021.
ADDITIONAL SEGMENT INFORMATION Refer to Note 14 to the consolidated financial statements for a detailed description of each segment. Below is a summary of each segment's profitability. Mainline Mainline operations reported an adjusted pretax income of $820 million in 2023, compared to an adjusted pretax income of $855 million in 2022.
To a lesser extent, miles for transportation are also sold to other non-airline partners, such as hotels, and car rental agencies. Outstanding miles may be redeemed for travel on our airlines or eligible airline partners, and for non-airline products such as hotels. As long as Mileage Plan is in existence, we have an obligation to provide future travel.
To a lesser extent, miles for transportation are also sold to other non-airline partners, such as hotels, and car rental agencies. Outstanding miles may be redeemed for travel on our airlines or eligible airline partners, and for non-airline products such as hotels. The existence of outstanding miles held by Mileage Plan members represents an obligation to provide future travel.
Our primary use of operating cash flow is for operating expenses, including payments for employee wages and benefits, payments to suppliers for goods and services, and payments to lessors and airport authorities for rents and landing fees.
Our primary use of operating cash flow is for operating expenses, including payments for employee wages and benefits, payments to suppliers for goods and services, and payments to lessors and airport authorities for rents and landing fees. Operating cash flow also includes payments to, or refunds from, federal, state and local taxing authorities.
This difference has created a significant deferred tax liability. At some point in the future the depreciation basis will reverse, potentially resulting in an increase in income taxes paid.
This difference has created a significant deferred tax liability. At some point in the future, the property and equipment difference will reverse into taxable income, potentially resulting in an increase in income taxes payable.
We consider it useful to summarize operating expenses as follows, which is consistent with the way expenses are reported internally and evaluated by management: Twelve Months Ended December 31, (in millions) 2022 2021 % Change Aircraft fuel, including hedging gains and losses $ 2,668 $ 1,279 109 % Non-fuel operating expenses, excluding special items 6,328 5,137 23 % Payroll Support Program grant wage offset — (914) NM Special items - fleet transition and other 496 (1) NM Special items - labor and related 84 (10) NM Total Operating Expenses $ 9,576 $ 5,491 74 % Significant operating expense variances from 2021 are more fully described below. 36 Fuel Expense Aircraft fuel expense includes raw fuel expense (as defined below) plus the effect of mark-to-market adjustments to our fuel hedge portfolio as the value of that portfolio increases and decreases.
We believe it is useful to summarize operating expenses as follows, which is consistent with the way expenses are reported internally and evaluated by management: Twelve Months Ended December 31, (in millions) 2023 2022 % Change Aircraft fuel, including hedging gains and losses $ 2,641 $ 2,668 (1) % Non-fuel operating expenses, excluding special items 6,948 6,328 10 % Special items - fleet transition and other 392 496 (21) % Special items - labor and related 51 84 (39) % Total Operating Expenses $ 10,032 $ 9,576 5 % Aircraft fuel Aircraft fuel expense includes raw fuel expense (as defined below) plus the effect of mark-to-market adjustments to our fuel hedge portfolio as the value of that portfolio increases and decreases.
Our crude oil positions are as follows: Approximate % of Expected Fuel Requirements Weighted-Average Crude Oil Price per Barrel Average Premium Cost per Barrel First Quarter 2023 50% $93 $6 Second Quarter 2023 50% $97 $7 Third Quarter 2023 40% $101 $8 Fourth Quarter 2023 30% $99 $8 Total 2023 43% $97 $7 First Quarter 2024 20% $89 $8 Second Quarter 2024 10% $86 $8 Total 2024 7% $88 $8 44 Contractual Obligations The following table provides a summary of our obligations as of December 31, 2022.
Our crude oil positions are as follows: Approximate % of Expected Fuel Requirements Weighted-Average Crude Oil Price per Barrel Average Premium Cost per Barrel First Quarter 2024 50% $90 $5 Second Quarter 2024 40% $90 $5 Third Quarter 2024 30% $88 $5 Fourth Quarter 2024 20% $87 $5 Full Year 2024 35% $89 $5 First Quarter 2025 10% $92 $5 Full Year 2025 2% $92 $5 Contractual Obligations The following table provides a summary of our obligations as of December 31, 2023.
The elements of the change are illustrated in the following table: Twelve Months Ended December 31, 2022 2021 (in millions, except for per gallon amounts) Dollars Cost/Gal Dollars Cost/Gal Raw or "into-plane" fuel cost $ 2,761 $ 3.64 $ 1,383 $ 2.11 (Gain)/loss on settled hedges (169) (0.22) (57) (0.09) Consolidated economic fuel expense $ 2,592 $ 3.42 $ 1,326 $ 2.02 Mark-to-market fuel hedge adjustments 76 0.10 (47) (0.07) GAAP fuel expense $ 2,668 $ 3.52 $ 1,279 $ 1.95 Fuel gallons 758 656 Raw fuel expense increased 100% in 2022 compared to 2021, due to significantly higher per gallon costs and increased fuel consumption.
The elements of the change are illustrated in the following table: Twelve Months Ended December 31, 2023 2022 (in millions, except for per gallon amounts) Dollars Cost/Gal Dollars Cost/Gal Raw or "into-plane" fuel cost $ 2,579 $ 3.13 $ 2,761 $ 3.64 (Gain)/loss on settled hedges 64 0.08 (169) (0.22) Consolidated economic fuel expense $ 2,643 $ 3.21 $ 2,592 $ 3.42 Mark-to-market fuel hedge adjustments (2) — 76 0.10 GAAP fuel expense $ 2,641 $ 3.21 $ 2,668 $ 3.52 Fuel gallons 824 758 Raw fuel expense decreased 7% in 2023 compared to 2022, due to lower per gallon costs, partially offset by increased fuel consumption.
Any accrual is based on the time remaining on the lease, planned aircraft usage and the provisions included in the lease agreement, although the actual amount due to any lessor upon return may not be known with certainty until lease termination. In 2022, we recorded expense of $238 million for estimated costs to return the Airbus A320 fleet.
Lease return accrual estimates are based on the time remaining on the lease, planned aircraft usage, and the provisions included in the lease agreement, although the actual amount due to any lessor upon return may not be known with certainty until lease termination.
MATERIAL CASH COMMITMENTS Material cash requirements include the following contractual and other obligations: Aircraft Commitments As of December 31, 2022, Alaska has firm orders to purchase 105 B737 aircraft with deliveries between 2023 and 2027 and firm commitments to lease four B737-9 aircraft with deliveries in 2023. Alaska also has rights for 105 additional B737 aircraft through 2030.
Other financing activities were largely comprised of settlements of certain A321neo finance leases. 45 MATERIAL CASH COMMITMENTS Material cash requirements include the following contractual and other obligations: Aircraft Commitments As of December 31, 2023, Alaska has firm orders to purchase 80 B737 aircraft with deliveries between 2024 and 2027. Alaska also has rights for 105 additional B737 aircraft through 2030.
(b) Includes contractual commitments for aircraft, engines, and aircraft maintenance. Option deliveries are excluded from minimum commitments until exercise. (c) For variable-rate debt, future obligations are shown above using interest rates forecast as of December 31, 2022. (d) Primarily comprised of nonlease costs associated with capacity purchase agreements.
It also includes minimum lease payments for facilities. (b) Includes contractual commitments for aircraft, engines, and aircraft maintenance. Option deliveries are excluded from minimum commitments until exercise. (c) For variable-rate debt, future obligations are shown above using interest rates forecast as of December 31, 2023.
Twelve Months Ended December 31, 2022 2021 Change Consolidated Operating Statistics: (a) Revenue passengers (000) 41,468 32,407 28.0% RPMs (000,000) "traffic" 51,330 38,598 33.0% ASMs (000,000) "capacity" 60,773 52,445 15.9% Load factor 84.5% 73.6% 10.9 pts Yield 17.16¢ 14.25¢ 20.4% RASM 15.87¢ 11.78¢ 34.8% CASMex (b) 10.41¢ 9.80¢ 6.3% Economic fuel cost per gallon (b) $3.42 $2.02 69.3% Fuel gallons (000,000) 758 656 15.5% ASMs per gallon 80.2 79.9 0.3% Departures (000) 404 377 7.2% Average full-time equivalent employees (FTEs) 22,564 19,375 16.5% Employee productivity (PAX/FTEs/months) 153.1 139.4 9.9% Mainline Operating Statistics: Revenue passengers (000) 31,795 23,268 36.6% RPMs (000,000) "traffic" 46,812 33,755 38.7% ASMs (000,000) "capacity" 55,224 45,741 20.7% Load factor 84.8% 73.8% 11.0 pts Yield 15.92¢ 13.07¢ 21.8% RASM 14.91¢ 10.99¢ 35.7% CASMex (b) 9.45¢ 8.96¢ 5.5% Economic fuel cost per gallon (b) $3.40 $2.01 69.2% Fuel gallons (000,000) 646 530 21.9% ASMs per gallon 85.5 86.2 (0.8)% Departures (000) 244 207 17.9% Average full-time equivalent employees (FTEs) 17,224 14,366 19.9% Aircraft utilization 9.9 9.7 2.1% Average aircraft stage length 1,347 1,324 1.7% Operating fleet (d) 225 217 8 a/c Regional Operating Statistics: (c) Revenue passengers (000) 9,673 9,139 5.8% RPMs (000,000) "traffic" 4,518 4,842 (6.7)% ASMs (000,000) "capacity" 5,549 6,704 (17.2)% Load factor 81.4% 72.2% 9.2 pts Yield 29.97¢ 22.49¢ 33.3% RASM 25.34¢ 17.12¢ 48.0% Departures (000) 160 170 (5.9)% Operating fleet (d) 86 94 (8) a/c (a) Except for FTEs, data includes information related to third-party regional capacity purchase flying arrangements.
Twelve Months Ended December 31, 2023 2022 Change Consolidated Operating Statistics: (a) Revenue passengers (000) 44,557 41,468 7% RPMs (000,000) "traffic" 57,362 51,330 12% ASMs (000,000) "capacity" 68,524 60,773 13% Load factor 83.7% 84.5% (0.8) pts Yield 16.61¢ 17.16¢ (3)% RASM 15.21¢ 15.87¢ (4)% CASMex (b) 10.14¢ 10.41¢ (3)% Economic fuel cost per gallon (b) $3.21 $3.42 (6)% Fuel gallons (000,000) 824 758 9% ASMs per gallon 83.2 80.2 4% Departures (000) 414 404 2% Average full-time equivalent employees (FTEs) 23,319 22,564 3% Mainline Operating Statistics: Revenue passengers (000) 35,307 31,795 11% RPMs (000,000) "traffic" 52,975 46,812 13% ASMs (000,000) "capacity" 63,292 55,224 15% Load factor 83.7% 84.8% (1.1) pts Yield 15.28¢ 15.92¢ (4)% RASM 14.12¢ 14.91¢ (5)% CASMex (b) 9.23¢ 9.45¢ (2)% Economic fuel cost per gallon (b) $3.18 $3.40 (6)% Fuel gallons (000,000) 713 646 10% ASMs per gallon 88.8 85.5 4% Departures (000) 268 244 10% Average full-time equivalent employees (FTEs) 18,129 17,224 5% Aircraft utilization 11.4 9.9 15% Average aircraft stage length 1,387 1,347 3% Operating fleet (d) 231 225 6 a/c Regional Operating Statistics: (c) Revenue passengers (000) 9,250 9,673 (4)% RPMs (000,000) "traffic" 4,387 4,518 (3)% ASMs (000,000) "capacity" 5,232 5,549 (6)% Load factor 83.8% 81.4% 2.4 pts Yield 32.57¢ 29.97¢ 9% RASM 28.26¢ 25.34¢ 12% Departures (000) 146 160 (9)% Operating fleet (d) 83 86 (3) a/c (a) Except for FTEs, data includes information related to third-party regional capacity purchase flying arrangements.
Excluding the impact of special items, mark-to-market fuel hedge adjustments, and the Payroll Support Program grant wage offset, our adjusted consolidated net income for 2022 was $556 million, or $4.35 per share, compared to an adjusted consolidated net loss of $256 million, or $2.03 per share, in 2021.
Excluding the impact of special items and mark-to-market fuel adjustments, our adjusted consolidated net income for 2023 was $583 million, or $4.53 per share, compared to adjusted consolidated net income of $556 million, or $4.35 per share, in 2022.
Under another such agreement, we could be required to maintain a reserve if our cash and marketable securities balance fell below $500 million.
Under another such agreement, we could be required to maintain a reserve if our cash and marketable securities balance fell below $500 million. We are not currently required to maintain any reserve under these agreements, but if we were, our financial position and liquidity could be materially harmed.
We believe that our current cash and marketable securities balance, combined with available sources of liquidity, will be sufficient to fund our operations, meet our debt payment obligations, and remain in compliance with the financial debt covenants in existing financing arrangements for the foreseeable future.
We also resumed share repurchases during the year, spending $145 million in 2023, pursuant to the $1 billion repurchase plan authorized by the Board of Directors in August 2015. 43 We believe that our current cash and marketable securities balance, combined with available sources of liquidity, will be sufficient to fund our operations, meet our debt payment obligations, and remain in compliance with the financial debt covenants in existing financing arrangements for the foreseeable future.
Fuel Hedge Positions All of our future oil positions are call options, which are designed to effectively cap the cost of the crude oil component of our jet fuel purchases.
Existing positions entered into before suspension of the program will settle through the first quarter of 2025. All future oil positions are call options, which are designed to effectively cap the cost of the crude oil component of our jet fuel purchases.
If the leased aircraft is removed from the operating fleet, the estimated cost of return is accrued at the time of removal.
If the leased aircraft is removed from the operating 47 fleet, the estimated cost to return is accrued at the time of removal. If a leased aircraft has a known early retirement date in the future, the estimated cost to return is accrued through the retirement date.
The changes are summarized in the following table: Twelve Months Ended December 31, (in millions) 2022 2021 % Change Passenger revenue $ 8,808 $ 5,499 60 % Mileage Plan other revenue 590 461 28 % Cargo and other revenue 248 216 15 % Total Operating Revenue $ 9,646 $ 6,176 56 % Passenger Revenue On a consolidated basis, Passenger revenue for 2022 increased by $3.3 billion, or 60%, on a 33% increase in passenger traffic and a 20% increase in ticket yield.
The changes are summarized in the following table: Twelve Months Ended December 31, (in millions) 2023 2022 % Change Passenger revenue $ 9,526 $ 8,808 8 % Mileage Plan other revenue 648 590 10 % Cargo and other revenue 252 248 2 % Total Operating Revenue $ 10,426 $ 9,646 8 % Passenger revenue On a consolidated basis, Passenger revenue for 2023 increased by $718 million, or 8%, on a 12% increase in passenger traffic, partially offset by a 3% decrease in yield.
The table below presents the major indicators of our financial condition and liquidity: (in millions) December 31, 2022 December 31, 2021 Change Cash and marketable securities $ 2,417 $ 3,116 $ (699) Cash, marketable securities, and unused lines of credit as a percentage of trailing twelve months revenue 29 % 57 % (28) pts Long-term debt, net of current portion $ 1,883 $ 2,173 $ (290) Shareholders’ equity $ 3,816 $ 3,801 $ 15 41 Debt-to-capitalization, adjusted for operating leases (in millions) December 31, 2022 December 31, 2021 Change Long-term debt, net of current portion $ 1,883 $ 2,173 (13)% Capitalized operating leases 1,621 1,547 5% Adjusted debt $ 3,504 $ 3,720 (6)% Shareholders' equity 3,816 3,801 —% Total invested capital $ 7,320 $ 7,521 (3)% Debt-to-capitalization, including operating leases 48% 49% Adjusted net debt to earnings before interest, taxes, depreciation, amortization, special items and rent (in millions) December 31, 2022 December 31, 2021 Current portion of long-term debt $ 276 $ 366 Current portion of operating lease liabilities 228 268 Long-term debt 1,883 2,173 Long-term operating lease liabilities, net of current portion 1,393 1,279 Total adjusted debt 3,780 4,086 Less: Cash and marketable securities (2,417) (3,116) Adjusted net debt $ 1,363 $ 970 (in millions) December 31, 2022 December 31, 2021 GAAP Operating Income $ 70 $ 685 Adjusted for: Special items and Payroll Support Program grant wage offset 580 (925) Mark-to-market fuel hedge adjustments 76 (47) Depreciation and amortization 415 394 Aircraft rent 291 254 EBITDAR $ 1,432 $ 361 Adjusted net debt to EBITDAR 1.0x 2.7x The following discussion summarizes the primary drivers of the decrease in our cash and marketable securities balance and our expectation of future cash requirements.
The table below presents the major indicators of our financial condition and liquidity: (in millions) December 31, 2023 December 31, 2022 Change Cash and marketable securities $ 1,791 $ 2,417 (26)% Cash, marketable securities, and unused lines of credit as a percentage of trailing twelve months' revenue 22 % 29 % (7) pts Long-term debt, net of current portion $ 2,182 $ 1,883 16% Shareholders’ equity $ 4,113 $ 3,816 8% Debt-to-capitalization, including operating and finance leases (in millions) December 31, 2023 December 31, 2022 Change Long-term debt, net of current portion $ 2,182 $ 1,883 16% Capitalized operating leases 1,283 1,621 (21)% Capitalized finance leases (a) 64 — NM Adjusted debt, net of current portion of long-term debt $ 3,529 $ 3,504 1% Shareholders' equity 4,113 3,816 8% Total invested capital $ 7,642 $ 7,320 4% Debt-to-capitalization, including operating and finance leases 46% 48% (a) To best reflect our leverage at December 31, 2023, we included our capitalized finance leases balance, which is recognized within the Current portion of long-term debt and finance leases line in the consolidated balance sheets. 44 Adjusted net debt to earnings before interest, taxes, depreciation, amortization, special items, and rent (in millions) December 31, 2023 December 31, 2022 Current portion of long-term debt and finance leases $ 353 $ 276 Current portion of operating lease liabilities 158 228 Long-term debt 2,182 1,883 Long-term operating lease liabilities, net of current portion 1,125 1,393 Total adjusted debt 3,818 3,780 Less: Cash and marketable securities (1,791) (2,417) Adjusted net debt $ 2,027 $ 1,363 (in millions) December 31, 2023 December 31, 2022 GAAP Operating Income $ 394 $ 70 Adjusted for: Special items 443 580 Mark-to-market fuel hedge adjustments (2) 76 Depreciation and amortization 451 415 Aircraft rent 208 291 EBITDAR $ 1,494 $ 1,432 Adjusted net debt to EBITDAR 1.4x 1.0x The following discussion summarizes the primary drivers of the decrease in our cash and marketable securities balance and our expectation of future cash requirements.
Contracted Services Contracted services increased by $94 million, or 40%, compared to 2021, driven primarily by increased departures and passengers in line with increased demand, coupled with increased rates charged by vendor partners. We expect contracted services to increase in 2023 as we continue to increase capacity and departures throughout our network.
Contracted services Contracted services expense increased by $60 million, or 18%, compared to 2022, primarily driven by higher rates charged by vendors for services as well as an increase in passengers. We expect contracted services to increase in 2024 as we continue to increase capacity and departures throughout our network.
Twelve Months Ended December 31, 2022 2021 (in millions, except per-share amounts) Dollars Diluted EPS Dollars Diluted EPS GAAP net income per share $ 58 $ 0.45 $ 478 $ 3.77 Payroll Support Program grant wage offset — — (914) (7.21) Mark-to-market fuel hedge adjustments 76 0.60 (47) (0.37) Special items - fleet transition and other 496 3.88 (1) (0.01) Special items - labor and related 84 0.66 (10) (0.08) Income tax effect of reconciling items above (158) (1.24) 238 1.87 Non-GAAP adjusted net income (loss) per share $ 556 $ 4.35 $ (256) $ (2.03) CASMex is reconciled to CASM below: Twelve Months Ended December 31, (in cents) 2022 2021 % Change Consolidated: CASM 15.76 ¢ 10.47 ¢ 51% Less the following components: Payroll Support Program grant wage offset — (1.75) (100)% Aircraft fuel, including hedging gains and losses 4.39 2.44 80% Special items - fleet transition and other 0.82 — NM Special items - labor and related 0.14 (0.02) NM CASM excluding fuel and special items 10.41 ¢ 9.80 ¢ 6% Mainline: CASM 14.42 ¢ 9.52 ¢ 51% Less the following components: Payroll support program grant wage offset — (1.75) (100)% Aircraft fuel, including hedging gains and losses 4.11 2.33 76% Special items - fleet transition and other 0.71 — NM Special items - labor and related 0.15 (0.02) NM CASM excluding fuel and special items 9.45 ¢ 8.96 ¢ 5% 33 OPERATING STATISTICS SUMMARY (unaudited) Below are operating statistics we use to measure performance.
The following table reconciles our adjusted net income per share (EPS) to amounts as reported in accordance with GAAP: Twelve Months Ended December 31, 2023 2022 (in millions, except per share amounts) Dollars Diluted EPS Dollars Diluted EPS GAAP net income per share $ 235 $ 1.83 $ 58 $ 0.45 Mark-to-market fuel hedge adjustments (2) (0.02) 76 0.60 Special items - fleet transition and other 392 3.05 496 3.88 Special items - labor and related 51 0.40 84 0.66 Special items - net non-operating 18 0.14 — — Income tax effect of reconciling items above (111) (0.87) (158) (1.24) Non-GAAP adjusted net income per share $ 583 $ 4.53 $ 556 $ 4.35 CASM excluding fuel and special items reconciliation is summarized below: Twelve Months Ended December 31, (in cents) 2023 2022 % Change Consolidated: CASM 14.64 ¢ 15.76 ¢ (7)% Less the following components: Aircraft fuel, including hedging gains and losses 3.85 4.39 (12)% Special items - fleet transition and other 0.57 0.82 (30)% Special items - labor and related 0.08 0.14 (43)% CASM excluding fuel and special items 10.14 ¢ 10.41 ¢ (3)% Mainline: CASM 13.51 ¢ 14.42 ¢ (6)% Less the following components: Aircraft fuel, including hedging gains and losses 3.57 4.11 (13)% Special items - fleet transition and other 0.63 0.71 (11)% Special items - labor and related 0.08 0.15 (47)% CASM excluding fuel and special items 9.23 ¢ 9.45 ¢ (2)% OPERATING REVENUE Total operating revenue increased $780 million, or 8%, during 2023 compared to the same period in 2022.
Although we believe it is useful to evaluate non-fuel unit costs for the reasons noted above, we would caution readers of these financial statements not to place undue reliance on unit costs excluding fuel as a measure or predictor of future profitability because of the significant impact of fuel costs on our business. 32 Although we are presenting these non-GAAP amounts for the reasons above, investors and other readers should not necessarily conclude that these amounts are nonrecurring, infrequent, or unusual in nature. 2022 COMPARED WITH 2021 Our consolidated net income for 2022 was $58 million, or $0.45 per diluted share, compared to a net income of $478 million, or $3.77 per diluted share, in 2021.
Although we believe it is useful to evaluate non-fuel unit costs for the reasons noted above, we would caution readers of these financial statements not to place undue reliance on unit costs excluding fuel as a measure or predictor of future profitability because of the significant impact of fuel costs on our business.
The deferred revenue resulting from our relative selling price allocations requires significant management judgment. There are uncertainties inherent in these estimates. Therefore, different assumptions could affect the amount and/or timing of revenue recognition or expenses. The most significant assumptions are described below. 1.
Therefore, different assumptions could affect the amount and/or timing of revenue recognition or expenses. The most significant assumptions are described below. 1.
Cash Used in Investing Activities Cash used in investing activities was $1.2 billion during 2022 compared to $1 billion in 2021. Cash used in capital expenditures for aircraft purchase deposits and other property and equipment was $1.7 billion in 2022, compared to $292 million in 2021.
The decrease in cash used is primarily driven by reduced capital expenditures for aircraft purchase deposits and other property and equipment, which were $1.5 billion in 2023 compared to $1.7 billion in 2022. Cash Used in Financing Activities Cash used in financing activities was $147 million in 2023 compared to $325 million in 2022.
Our estimates are based on the current requirements in our Mileage Plan program and historical and future award redemption patterns. We review significant Mileage Plan assumptions on an annual basis, or more frequently should circumstances indicate a need, and change our assumptions if facts and circumstances indicate that a change is necessary.
We review significant Mileage Plan assumptions on an annual basis, or more frequently should circumstances indicate a need, and change our assumptions if facts and circumstances indicate that a change is necessary. The Company regularly updates breakage estimates for the portion of loyalty mileage credits not expected to be redeemed. These estimates are based upon statistical analyses of historical data.
Gains recognized for hedges that settled during the year were $169 million in 2022, compared to gains of $57 million in 2021. These amounts represent cash received from settled hedges, offset by cash paid for the premium cost on related call options.
Losses recognized for hedges that settled during the year were $64 million in 2023, compared to gains of $169 million in 2022. These amounts represent cash paid for premium expense, offset by any cash received from those hedges at settlement. In the fourth quarter of 2023, we suspended our crude oil hedge program.
These commitments include, but are not limited to, purchasing SAF, increasing our use of electric ground equipment in our operation, and making investments through Alaska Star Ventures. Finding and establishing relationships with suppliers to meet these commitments is in process. Currently, Alaska has agreements to purchase approximately 200 million gallons of SAF to be delivered between 2025 and 2030.
We anticipate these efforts will require cash outlays, not all of which are reflected in our contractual commitments. Finding and establishing relationships with suppliers to meet these commitments is in process. Currently, Alaska has agreements to purchase approximately 200 million gallons of neat SAF to be delivered through 2030.
The primary components of Wages and benefits are shown in the following table: Twelve Months Ended December 31, (in millions) 2022 2021 % Change Wages $ 2,024 $ 1,643 23 % Pension - Defined benefit plans 45 52 (13) % Defined contribution plans 160 126 27 % Medical and other benefits 263 275 (4) % Payroll taxes 148 122 21 % Total wages and benefits $ 2,640 $ 2,218 19 % Wages and payroll taxes increased by a combined $407 million, or 23%, on a 17% increase in FTEs as Alaska, Horizon, and McGee hired to support the ramp up in operations.
The primary components of wages and benefits are shown in the following table: Twelve Months Ended December 31, (in millions) 2023 2022 % Change Wages $ 2,333 $ 2,024 15 % Payroll taxes 162 148 9 % Medical and other benefits 314 263 19 % Defined contribution plans 203 160 27 % Pension - Defined benefit plans 29 45 (36) % Total Wages and benefits $ 3,041 $ 2,640 15 % Wages increased $309 million, or 15%, on 3% growth in FTEs.
Significant operating expense variances from 2021 are more fully described below. 37 Twelve Months Ended December 31, (in millions) 2022 2021 % Change Wages and benefits $ 2,640 $ 2,218 19 % Variable incentive pay 257 151 70 % Aircraft maintenance 424 364 16 % Aircraft rent 291 254 15 % Landing fees and other rentals 581 555 5 % Contracted services 329 235 40 % Selling expenses 295 173 71 % Depreciation and amortization 415 394 5 % Food and beverage service 197 139 42 % Third-party regional carrier expense 182 147 24 % Other 717 507 41 % Total non-fuel operating expenses, excluding special items $ 6,328 $ 5,137 23 % Wages and Benefits Wages and benefits increased during 2022 by $422 million, or 19%, compared to 2021, excluding the impact of the Payroll Support Program grant wage offset.
Non-fuel expenses Twelve Months Ended December 31, (in millions) 2023 2022 % Change Wages and benefits $ 3,041 $ 2,640 15 % Variable incentive pay 200 257 (22) % Aircraft maintenance 488 424 15 % Aircraft rent 208 291 (29) % Landing fees and other rentals 680 581 17 % Contracted services 389 329 18 % Selling expenses 303 295 3 % Depreciation and amortization 451 415 9 % Food and beverage service 241 197 22 % Third-party regional carrier expense 218 182 20 % Other 729 717 2 % Total non-fuel operating expenses, excluding special items $ 6,948 $ 6,328 10 % Wages and benefits Wages and benefits expense increased during 2023 by $401 million, or 15%, compared to 2022.
Our relative standalone selling price models are refreshed when contracts originate or are materially modified. Absent a change to relevant contracts, we review the model for potential updates annually based on observed volumes. At December 31, 2022, we had approximately 319 billion miles outstanding, resulting in an aggregate deferred revenue balance of $2.5 billion.
Our relative standalone selling price models are refreshed when contracts originate or are materially modified. At December 31, 2023, we had approximately 341 billion miles outstanding, resulting in an aggregate deferred revenue balance of $2.6 billion. The deferred revenue resulting from our relative selling price allocations requires significant management judgment. There are uncertainties inherent in these estimates.
We expect food and beverage service to increase in 2023 as we continue to increase capacity and departures throughout our network. Third-party Regional Carrier Expense Third-party regional carrier expense, which represents payments made to SkyWest under our CPA agreements, increased $35 million, or 24%, in 2022 compared to 2021.
Third-party regional carrier expense Third-party regional carrier expense, which represents payments made to SkyWest under our CPA, increased $36 million, or 20%, in 2023 compared to 2022. The increase in third-party regional carrier expense is driven by incremental SkyWest-operated departures.
Improved results were attributable to increased operating revenue of $259 million driven by higher demand and yields, partially offset by a $136 million increase in fuel expense driven by higher fuel prices. Horizon Horizon reported an adjusted pretax loss of $46 million in 2022 compared to an adjusted pretax profit of $12 million in 2021.
Improved results were driven by a $72 million increase in operating revenue, attributable to a higher yield compared to the prior year, as well as decreased fuel expense on a lower price per gallon. Horizon Horizon reported an adjusted pretax loss of $11 million in 2023, compared to an adjusted pretax loss of $46 million in 2022.
Debt service obligations in 2023 is expected to be approximately $384 million, inclusive of interest and principal. Refer to Note 6 to the consolidated financial statement for further discussion of our debt and interest balances.
At December 31, 2023 and inclusive of the impact of our interest rate swaps, our debt portfolio carries a weighted average interest rate of 4.4%. Interest is paid with regular debt service. Refer to Note 6 to the consolidated financial statement for further discussion of our debt and interest balances.
We estimate the selling prices and volumes over the terms of the agreements in order to determine the allocation of proceeds to each of the multiple deliverables. Following the amendment of our agreement with one of our co-branded bank card partners in the first quarter of 2022, the Company updated the standalone selling price for performance obligations in the contract.
We estimate the selling prices and volumes over the terms of the agreements in order to determine the allocation of proceeds to each of the multiple deliverables. 2.
As compared to the prior year, higher Mainline revenue is primarily attributable to a 39% increase in traffic and a 22% increase in yield, driven by a historically strong demand environment. Non-fuel operating expenses increased, driven by higher variable costs, largely consistent with the overall growth in capacity and departures.
Compared to the prior year, non-fuel operating expenses increased due largely to higher wage rates and higher variable costs consistent with growth in capacity and departures. Additional gallons consumed and losses from settled hedges compared to gains in the prior year drove the increase in fuel expense. Non-operating expense increased primarily driven by increases to certain components of pension expense.
Mileage Plan Other Revenue On a consolidated basis, Mileage Plan other revenue increased $129 million, or 28%, as compared to 2021, largely due to an increase in commissions from our bank card partners driven by increased consumer spending and improved economics from our new co-branded credit card agreement.
Mileage Plan other revenue On a consolidated basis, Mileage Plan other revenue increased $58 million, or 10%, compared to 2022, primarily driven by higher commissions from our bank card partners due to increased spend levels, annual membership fees, and credit card acquisitions. OPERATING EXPENSES Total operating expenses increased $456 million, or 5%, compared to 2022.
Raw fuel price per gallon increased 73% due to higher West Coast jet fuel prices. West Coast jet fuel prices are impacted by both the price of crude oil, as well as refining margins associated with the conversion of crude oil to jet fuel. Crude oil prices have risen 37% while refining margins are four times as high as 2021.
Raw fuel expense per gallon decreased 14% due to lower all-in jet fuel prices. Jet fuel prices are impacted by the price of crude oil and refining margins associated with the conversion of crude oil to jet fuel, both of which have decreased in 2023 compared to 2022. Fuel gallons consumed increased 9%, driven by a 13% increase in capacity.
Horizon has commitments to purchase 17 Embraer E175 aircraft with deliveries between 2023 and 2026. Horizon has options to acquire 13 Embraer E175 aircraft between 2025 and 2026.
As of December 31, 2023, Horizon has commitments to purchase nine E175 aircraft with deliveries between 2024 and 2026. Horizon has options to acquire ten E175 aircraft between 2025 and 2026. The E175 deliveries expected through the end of 2024 are covered under a financing agreement executed in 2023.
Debt Obligations and Interest Obligations The Company primarily issues debt to fund purchases of aircraft or other capital expenditures. In 2022, we repaid $385 million in debt, including prepayments of $17 million. At December 31, 2022, our debt portfolio carries a weighted average interest rate of 3.7%. Interest is paid with regular debt service.
Debt Obligations and Interest Obligations The Company primarily issues debt to fund purchases of aircraft or other capital expenditures. In 2023, the Company incurred new debt of $595 million and repaid $282 million in existing debt.
The $1 billion improvement was primarily driven by a $3.2 billion increase in Passenger revenue, offset by a $1.1 billion increase in economic fuel cost and a $1.1 billion increase in non-fuel operating costs.
The $35 million decrease was driven by a $625 million increase in non-fuel operating expense, a $69 million increase in fuel expense, and a $45 million increase in non-operating expense, partially offset by a $704 million increase in operating revenue.
We expect aircraft rent to decrease in 2023 driven by lease terminations in 2022 for certain Airbus and Q400 aircraft, partially offset by incremental deliveries of leased B737-9 aircraft during 2023 and the annualization of expense of lease deliveries in 2022. Landing Fees and Other Rentals Landing fees and other rental expenses increased $26 million, or 5%, compared to 2021.
These decreases were partially offset by delivery of four leased B737-9 aircraft in 2023. We expect aircraft rent to decrease in 2024 driven by a reduction in leased aircraft as a result of exiting the Airbus fleet, partially offset by the annualization of expense for leased aircraft deliveries in 2023.
Food and Beverage Service Food and beverage service increased by $58 million, or 42%, compared to 2021, primarily driven by the 28% increase in revenue passengers as well as additional offerings of on-board products as compared to the prior-year period. Higher costs for food, food service supplies, and transportation also contributed to the increase.
Food and beverage service Food and beverage service expense increased by $44 million, or 22%, compared to 2022, primarily driven by a combination of a 7% increase in passengers and higher costs for food, food service supplies, and transportation. We expect food and beverage service to increase in 2024 as we continue to increase capacity and departures throughout our network.
We will continue to evaluate the provisions within the IRA, but at this time we do not believe it will have a material impact on our financial statements. 46 CRITICAL ACCOUNTING ESTIMATES The discussion and analysis of our financial position and results of operations in this MD&A are based upon our consolidated financial statements.
The Company expects to fund this acquisition through a combination of existing cash and marketable securities, new debt, as well as other available sources of liquidity. 48 CRITICAL ACCOUNTING ESTIMATES The discussion and analysis of our financial position and results of operations in this MD&A are based upon our consolidated financial statements.
Higher fuel prices, combined with more gallons consumed, drove the increase in Mainline fuel expense. Regional Regional operations reported an adjusted pretax loss of $76 million in 2022, compared to an adjusted pretax loss of $210 million in 2021.
Higher operating revenue was primarily attributable to a 13% increase in traffic consistent with growth in capacity, as well as continued strength in the Mileage Plan program. Regional Regional operations reported an adjusted pretax loss of $22 million in 2023, compared to an adjusted pretax loss of $76 million in 2022.
During the year, we had no new proceeds from issuance of debt and utilized cash on hand to make $385 million in debt payments, compared to debt proceeds of $363 million and payments of $1.3 billion in the prior year.
The decrease in cash used is driven by a combination of factors. We had debt proceeds in 2023 of $411 million, net of issuance costs, compared to none in the prior year. We made $282 million in debt payments compared to $385 million in the prior year.
Updated standalone selling prices became effective as of January 1, 2022. 2. The number of miles that will not be redeemed for travel (breakage): We estimate how many miles will be used per award. For example, our members may redeem mileage credits for award travel to various locations or choose between a highly restricted award and an unrestricted award.
The number of miles that will not be redeemed for travel (breakage): We estimate how many miles will be used per award by employing a relative selling price method to allocate revenue from passenger ticket sales between air transportation and earned mileage credits. The portion attributed to mileage credits is deferred initially and recognized in passenger revenue upon redemption.
Higher maintenance expense is the result of charges recorded for maintenance work to return leased aircraft recorded in the first quarter of 2022 and increased power-by-the-hour charges on covered aircraft, including a new contract for our regional fleet. 38 We expect aircraft maintenance expense to be higher in 2023 due to increased aircraft utilization and a new power-by-the-hour contract for our B737-900ER fleet.
We expect aircraft maintenance expense to be higher in 2024 due to fleet growth and a new contract effective in 2024 for certain E175 engines. Aircraft rent Aircraft rent expense decreased $83 million, or 29%, compared to 2022. The decrease was driven by the retirement of all Airbus aircraft from our operating fleet by the third quarter of 2023.
The shift to adjusted pretax loss is driven by lower CPA revenue on decreased departures, combined with higher wage and benefit costs on incremental FTEs and increased wage rates resulting from the new collective bargaining agreements with Horizon employees. 40 LIQUIDITY AND CAPITAL RESOURCES Our primary sources of liquidity are: • Existing cash and marketable securities balance of $2.4 billion; • Cash flows from operations; • 73 unencumbered aircraft that could be financed, if necessary; • Combined bank line-of-credit facilities, with no outstanding borrowings, of $400 million Improved results and increased demand in 2022 allowed us to strengthen our balance sheet and available liquidity as we prepare for growth in 2023 and thereafter.
LIQUIDITY AND CAPITAL RESOURCES Our primary sources of liquidity are: • Existing cash and marketable securities of $1.8 billion; • Cash flows from operations of $1.1 billion; • Our Mileage Plan program and 69 unencumbered aircraft which could be financed, if necessary; • Combined bank line-of-credit facilities, with no outstanding borrowings, of $550 million.