Biggest changeOperating Expenses Individual expense components attributable to our operations are set forth in the following table (dollar amounts in thousands): For the year ended December 31, 2024 2023 $ Change % Change Salaries, wages and benefits $ 1,463,932 $ 1,322,615 $ 141,317 10.7 % Aircraft maintenance, materials and repairs 712,642 673,453 39,189 5.8 % Depreciation and amortization 383,880 383,115 765 0.2 % Aircraft fuel 87,409 85,913 1,496 1.7 % Airport-related expenses 85,836 72,640 13,196 18.2 % Aircraft rentals 5,257 25,507 (20,250) (79.4) % Other operating expenses 294,307 268,120 26,187 9.8 % Total operating expenses $ 3,033,263 $ 2,831,363 $ 201,900 7.1 % Salaries, wages and benefits.
Biggest changeThe increase in lease, airport services and other revenues of $57.9 million, or 50.3%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an incr ease in maintenance services provided to third parties, an increase in the number of leased assets, and increase in lease rates during 2025 compared to 2024. 36 Table of Contents Operating Expenses Individual expense components attributable to our operations are set forth in the following table (dollar amounts in thousands): For the year ended December 31, 2025 2024 $ Change % Change Salaries, wages and benefits $ 1,559,356 $ 1,463,932 $ 95,424 6.5 % Aircraft maintenance, materials and repairs 943,779 712,642 231,137 32.4 % Depreciation and amortization 364,497 383,880 (19,383) (5.0) % Airport-related expenses 121,589 85,836 35,753 41.7 % Aircraft fuel 120,368 87,409 32,959 37.7 % Other operating expenses 330,767 299,564 31,203 10.4 % Total operating expenses $ 3,440,356 $ 3,033,263 $ 407,093 13.4 % Salaries, wages and benefits.
Other income, net primarily consists of the realized and unrealized gains or losses on our investments in other companies, income or loss related to our equity method investments and gains or losses on the sale of assets.
Other income, net primarily consists of the unrealized and realized gains and losses on our investments in other companies, income or loss related to our equity method investments and gains or losses on the sale of assets.
Historically, multiple contractual relationships with major airlines have enabled us to reduce our reliance on any single major airline code and to enhance and stabilize operating results through a mix of our capacity purchase agreements and our prorate flying agreements.
Historically, multiple contractual relationships with major airlines have enabled us to reduce our reliance on any single major airline code and to enhance and stabilize operating results through a mix of our capacity purchase agreements and our prorate agreements.
Discussions of 2022 items and year-to-year comparisons between 2023 and 2022 that are not included in this Annual Report on Form 10-K can be found in the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.
Discussions of 2023 items and year-to-year comparisons between 2024 and 2023 that are not included in this Annual Report on Form 10-K can be found in the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.
The significant items affecting our revenue and operating expenses during the year ended December 31, 2024, are outlined below: Revenue The number of aircraft we have in scheduled service or under contract pursuant to our code-share agreements and the number of block hours we incur on our flights are primary drivers of our flying agreements revenue under our capacity purchase agreements.
The significant items affecting our revenue and operating expenses during the year ended December 31, 2025, are outlined below: Revenue The number of aircraft we have in scheduled service or under contract pursuant to our code-share agreements and the number of block hours we incur on our flights are primary drivers of our flying agreements revenue under our capacity purchase agreements.
Given our available liquidity as of December 31, 2024, we believe the working capital currently available to us will be sufficient to meet our present financial requirements, including planned capital expenditures, scheduled lease payments and debt service obligations for at least the next 12 months.
Given our available liquidity as of December 31, 2025, we believe the working capital currently available to us will be sufficient to meet our present financial requirements, including planned capital expenditures, scheduled lease payments and debt service obligations for at least the next 12 months.
The number of flights we operate and the corresponding number of passengers we carry are the primary drivers of our revenue under our prorate flying agreements.
The number of flights we operate and the corresponding number of passengers we carry are the primary drivers of our revenue under our prorate agreements.
Our operating cash flows are typically impacted by various factors including our net income, adjusted for non-cash expenses and gains such as depreciation expense, asset impairment charges, stock-based compensation expense and gains or losses on the disposal of assets; and timing of cash payments and cash receipts attributed to our various current asset and liability accounts, such as accounts receivable, inventory, accounts payable, accrued liabilities, deferred revenue and unbilled revenue.
Our operating cash flows are typically impacted by various factors including our net income, adjusted for non-cash expenses and gains such as depreciation expense, stock based compensation expense and gains or losses on the disposal of assets; and timing of cash payments and cash receipts attributed to our various current asset and liability accounts, such as accounts receivable, inventory, accounts payable, income taxes, accrued liabilities, deferred revenue and unbilled revenue.
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The following discussion and analysis presents factors that had a material effect on our results of operations during the years ended December 31, 2024 and 2023. Also discussed is our financial condition as of December 31, 2024 and 2023.
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The following discussion and analysis presents factors that had a material effect on our results of operations during the years ended December 31, 2025 and 2024. Also discussed is our financial condition as of December 31, 2025 and 2024.
The amount of deferred revenue and unbilled revenue from fixed monthly payments we recognize will increase or decrease in future reporting periods depending on the number of block hours we complete during such reporting period and our then-current forecast of block hours we anticipate completing over the remaining contract term based on information available to us as that time.
The amount of deferred revenue and unbilled revenue from fixed monthly payments we recognize will increase or decrease in future reporting periods depending on the number of block hours we 43 Table of Contents complete during such reporting period and our then-current forecast of block hours we anticipate completing over the remaining contract term based on information available to us as that time.
Risk Factors” for discussion of some of the uncertainties, risks and assumptions associated with these statements. This section of this Annual Report on Form 10-K generally discusses 2024 and 2023 items and year-to-year comparisons between 2024 and 2023.
Risk Factors” for discussion of some of the uncertainties, risks and assumptions associated with these statements. This section of this Annual Report on Form 10-K generally discusses 2025 and 2024 items and year-to-year comparisons between 2025 and 2024.
The third parties’ loans are secured by aircraft and engines. Critical Accounting Policies and Estimates Our significant accounting policies are summarized in Note 1 to our Consolidated Financial Statements included in Item 8 of this Report.
The third party’s loans are secured by aircraft and engines. Critical Accounting Policies and Estimates Our significant accounting policies are summarized in Note 1 to our Consolidated Financial Statements included in Item 8 of this Report.
Lease, airport services and other revenues consist of revenue earned from leasing aircraft and spare engines to third parties separate from our capacity purchase agreements and providing airport counter, gate and ramp services.
Lease, airport services and other revenues consist of revenue earned from leasing aircraft and spare engines to third parties separate from our capacity purchase agreements, providing maintenance services to other airlines and providing airport counter, gate and ramp services.
A portion of the consideration received for the use of the aircraft is a fixed monthly payment per aircraft. We recognize the fixed monthly lease payments as lease revenue using the straight-line basis over 42 Table of Contents the capacity purchase agreement term and variable lease payments in the period when the block hours are completed.
A portion of the consideration received for the use of the aircraft is a fixed monthly payment per aircraft. We recognize the fixed monthly lease payments as lease revenue using the straight-line basis over the capacity purchase agreement term and variable lease payments in the period when the block hours are completed.
Our fleet of E175, CRJ900, CRJ700 and CRJ550 have a multiple-class seat configuration, whereas our CRJ200 have a single-class seat configuration. During 2022, we formed SWC, which offers on-demand charter services using CRJ200 aircraft in a 30-seat configuration.
Our fleet of E175, CRJ900, CRJ700 and 32 Table of Contents CRJ550 have a multiple-class seat configuration, whereas our CRJ200 have a single-class seat configuration. During 2022, we formed SWC, which offers on-demand charter services using CRJ200 aircraft in a 30-seat configuration.
Other operating expenses primarily consist of property taxes, hull and liability insurance, simulator costs, crew per diem, crew hotel costs and credit loss reserves.
Other operating expenses primarily consist of aircraft rentals, property taxes, hull and liability insurance, simulator costs, crew per diem, crew hotel costs and credit loss reserves.
As we operate our aircraft under code-share agreements with our major 43 Table of Contents airline partners, changes in anticipated demand by our major airline partners for regional aircraft may impact our estimated useful lives and residual values for our aircraft, spare engines and other long-lived assets.
As we operate our aircraft under code-share agreements with our major airline partners, changes in anticipated demand by our major airline partners for regional aircraft may impact our estimated useful lives and residual values for our aircraft, spare engines and other long-lived assets.
Long-term Debt Obligations As of December 31, 2024, we had $2.7 billion of long-term debt, which consisted of $2.5 billion of debt used to finance aircraft and spare engines and $200.6 million of unsecured debt payable to Treasury. The average effective interest rate on our debt obligations was approximately 4.2% at December 31, 2024.
Long-term Debt Obligations As of December 31, 2025, we had $2.4 billion of long-term debt, which consisted of $2.2 billion of debt used to finance aircraft and spare engines and $200.6 million of unsecured debt payable to Treasury. The average effective interest rate on our debt obligations was approximately 4.3% at December 31, 2025.
Based on current market conditions and discussions with prospective leasing organizations and financial institutions, we currently believe that we will be able to obtain financing for our committed acquisitions, as well as additional aircraft. We intend to finance the firm purchase commitment for 16 E175 aircraft with approximately 75-85% 41 Table of Contents debt and the remaining balance with cash.
Based on current market conditions and discussions with prospective leasing organizations and financial institutions, we currently believe that we will be able to obtain financing for our committed acquisitions, as well as additional aircraft. We intend to finance the firm purchase commitment for 69 E175 aircraft with approximately 75-85% debt and the remaining balance with cash.
Our total long-term debt, including current maturities decreased from $3.0 billion as of December 31, 2023, to $2.7 billion as of December 31, 2024, or by $0.3 billion, primarily due to scheduled debt payments for the 2024 year, partially offset by debt issued to finance five new E175 aircraft.
Our total long-term debt, including current maturities decreased from $2.7 billion as of December 31, 2024, to $2.4 billion as of December 31, 2025, or by $0.3 billion, primarily due to scheduled debt payments for the 2025 year, partially offset by debt issued to finance seven new E175 aircraft.
Our primary objective in the fleet changes is to improve our profitability by adding new E175 aircraft and used CRJ700, CRJ550, CRJ900 and E175 aircraft, commonly referred to as “ dual-class CRJ aircraft,” to capacity purchase agreements or prorate agreements, and potentially removing older aircraft from service that typically require higher maintenance costs.
Our primary objective in the fleet changes is to improve our profitability by adding new E175 aircraft and used CRJ700, CRJ550, CRJ900 and E175 aircraft, commonly referred to as “ dual-class aircraft” due to the first-class seat offerings, to our capacity purchase agreements or prorate agreements, and potentially removing older aircraft from service that typically require higher maintenance costs.
Our rates were finalized under our code-share agreements as of December 31, 2024. Long-Lived Assets As of December 31, 2024, we had approximately $5.6 billion of property and equipment and related assets net of accumulated depreciation.
Our rates were finalized under our code-share agreements as of December 31, 2025. Long-Lived Assets As of December 31, 2025, we had approximately $5.8 billion of property and equipment and related assets net of accumulated depreciation.
The SkyWest Airlines and SWC segment includes revenue earned under the applicable capacity purchase agreements attributed to operating such aircraft and the respective operating costs, and revenue and operating expenses attributed to other flying or airport services agreements and charter flight services.
The SkyWest Airlines and SWC segment includes revenue earned under the applicable capacity purchase agreements attributed to operating such aircraft and the respective operating costs, and revenue and operating expenses attributed to prorate agreements, airport services agreements and charter flight services.
Excluding aircraft financed by our major airline partners that we operate for them under contract, we had eight aircraft under lease with remaining terms ranging from four to six years as of December 31, 2024. These eight leased aircraft are subleased to a third party.
Excluding aircraft financed by our major airline partners that we operate for them under contract, we had eight aircraft under lease with remaining terms ranging from three years to five years as of December 31, 2025. These eight leased aircraft are subleased to a third party.
For the years ended December 31, 2024, and December 31, 2023, our effective income tax rates were 25.3% and 14.8%, respectively, which included the statutory federal income tax rate of 21% and other reconciling income tax items, including state income taxes and the impact of non-deductible expenses.
For the years ended December 31, 2025, and December 31, 2024, our effective income tax rates were 24.3% and 25.3%, respectively, which included the statutory federal income tax rate of 21.0% and other reconciling income tax items, including state income taxes and the impact of non-deductible expenses.
Excluding the purchase and sale of marketable securities, which results in the transfer of dollars between our investments in marketable securities and our cash accounts, our cash used in investing activities increased from $284.6 million for the year ended December 31, 2023, to $341.2 million for the year ended December 31, 2024.
Excluding the purchase and sale of marketable securities, which results in the transfer of dollars between our investments in marketable securities and our cash accounts, our cash used in investing activities increased from $341.2 million for the year ended December 31, 2024, to $642.0 million for the year ended December 31, 2025.
The increase in operating expenses was primarily due to an increase in 33 Table of Contents our direct operating expenses associated with the increase in the number of flights we operated for the year ended December 31, 2024, compared to the year ended December 31, 2023.
The increase in operating expenses was primarily due to an increase in our direct operating expenses associated with the increase in the number of flights we operated for the year ended December 31, 2025, compared to the year ended December 31, 2024.
Our total deferred revenue balance, associated with our “Capacity purchase agreements flight operations revenue” and our “Capacity purchase agreements aircraft lease revenue,” net of unbilled revenue, was $322.4 million as of December 31, 2024, compared to total deferred revenue, net of unbilled revenue of $367.3 million as of December 31, 2023.
Our total deferred revenue balance, associated with our “Capacity purchase agreements flight operations revenue” and our “Capacity purchase agreements aircraft lease revenue,” net of unbilled revenue, was $264.6 million as of December 31, 2025, compared to total deferred revenue, net of unbilled revenue of $322.4 million as of December 31, 2024.
Primarily due to the factors described above, we generated net income of $323.0 million, or $7.77 per diluted share, for the year ended December 31, 2024, compared to net income of $34.3 million, or $0.77 per diluted share, for the year ended December 31, 2023.
Primarily due to the factors described above, we generated net income of $428.3 million, or $10.35 per diluted share, for the year ended December 31, 2025, compared to net income of $323.0 million, or $7.77 per diluted share, for the year ended December 31, 2024.
We recognized $1.5 million of previously deferred lease revenue during the year ended December 31, 2024, under the straight-line basis. Additionally, a portion of our compensation under our capacity purchase agreements relates to operating the aircraft, identified as the non-lease component of the capacity purchase agreement.
We recognized $13.9 million of previously deferred lease revenue and $5.6 million unbilled revenue during the year ended December 31, 2025, under the straight-line basis. Additionally, a portion of our compensation under our capacity purchase agreements relates to operating the aircraft, identified as the non-lease component of the capacity purchase agreement.
Assuming a 6.2% discount rate, which is the average incremental borrowing rate we anticipate we would have incurred on debt obtained over a similar term to acquire these assets, the present value of these lease obligations would have been equal to approximately $87.7 million at December 31, 2024.
Assuming a 6.2% discount rate, which is the average incremental borrowing rate 42 Table of Contents we anticipate we would have incurred on debt obtained over a similar term to acquire these assets, the present value of these lease obligations would have been equal to approximately $81.9 million at December 31, 2025.
Cash Flows used in Financing Activities Our cash flows used in financing activities was $384.8 million for the year ended December 31, 2024, compared to cash used in financing activities of $667.8 million for the year ended December 31, 2023.
Cash Flows used in Financing Activities Our cash flows used in financing activities was $393.2 million for the year ended December 31, 2025, compared to cash used in financing activities of $384.8 million for the year ended December 31, 2024.
Liquidity and Capital Resources As of December 31, 2024, we had $801.6 million in cash, cash equivalents and marketable securities and $75.1 million available for borrowings under our line of credit.
Liquidity and Capital Resources As of December 31, 2025, we had $706.9 million in cash and cash equivalents and marketable securities. As of December 31, 2025, we had $75.6 million available for borrowings under our line of credit.
As of December 31, 2024 and 2023, we had $47.1 million and $49.1 million, respectively, in letters of credit and surety bonds outstanding with various banks and surety institutions. We had no restricted cash as of December 31, 2024 and 2023. Sources and Uses of Cash Cash Position and Liquidity.
As of December 31, 2025 and 2024, we had $47.2 million and $47.1 million, respectively, in letters of credit and surety bonds outstanding with various banks and surety institutions. We had no restricted cash as of December 31, 2025 and 2024. 40 Table of Contents Sources and Uses of Cash Cash Position and Liquidity.
We had net income of $323.0 million, or $7.77 per diluted share, for the year ended December 31, 2024, compared to net income of $34.3 million, or $0.77 per diluted share, for the year ended December 31, 2023.
We had net income of $428.3 million, or $10.35 per diluted share, for the year ended December 31, 2025, compared to net income of $323.0 million, or $7.77 per diluted share, for the year ended December 31, 2024.
Guarantees We have guaranteed the obligations of SkyWest Airlines under the Delta Connection Agreement and the United Express Agreement for the E175 aircraft. In addition, we have guaranteed certain other obligations under our aircraft financing and leasing agreements. We have guaranteed $24.7 million in promissory notes of third parties in event the third parties default on their payments.
Guarantees We have guaranteed the obligations of SkyWest Airlines under the United Express Agreement and the Delta Connection Agreement for the E175 aircraft. In addition, we have guaranteed certain other obligations under our aircraft financing and leasing agreements. We have guaranteed $12.6 million in promissory notes of a third party in the event the third party defaults on their payments.
As a result of a higher number of passengers carried on our prorate routes and an increase in the number of prorate and charter flights operated year-over-year, our prorate and SWC revenue increased $76.0 million, or 19.9%, in 2024, as compared to 2023.
As a result of a higher number of passengers carried on our prorate routes and an increase in the number of prorate and charter flights operated year-over-year, our prorate and SWC revenue increased $153.0 million, or 33.5%, in 2025, as compared to 2024.
SkyWest Airlines and SWC block hour production increased 13.3%, from 1,140,443 for the year ended December 31, 2023 to 1,292,040 for the year ended December 31, 2024, primarily due to an increase in the number of available captains, which allowed for a higher scheduled utilization of our aircraft.
SkyWest Airlines and SWC block hour production increased 14.7%, from 1,292,040 for the year ended December 31, 2024 to 1,481,723 for the year ended December 31, 2025, primarily due to an increase in the number of available captains, which allowed for a higher scheduled utilization of our aircraft.
The number of aircraft we have in scheduled service or under contract pursuant to our code-share agreements increased from 485 as of December 31, 2023, to 492 as of December 31, 2024, or by 1.4%; and the number of block hours increased from 1.14 million in 2023 to 1.29 million in 2024, or by 13.3%, due to an increase in scheduled daily utilization of our aircraft driven by an increase in the number of available captains.
The number of aircraft we have in scheduled service or under contract pursuant to our code-share agreements decreased from 492 as of December 31, 2024, to 487 as of December 31, 2025, or by 1.0%; and the number of block hours increased from 1.3 million in 2024 to 1.5 million in 2025, or by 14.7%, primarily due to an increase in the scheduled daily utilization of our aircraft driven by an increase in the number of available captains.
Based on the number of completed block hours during the year ended December 31, 2024, we recognized $43.4 million of previously deferred revenue, net of unbilled revenue, related to the non-lease fixed monthly payments we received associated with our flight operations revenues.
Based on the number of completed block hours during the year ended December 31, 2025, we recognized a total of $38.3 million of previously deferred revenue and unbilled revenue related to the non-lease fixed monthly payments we received associated with our flight operations revenues.
Our revenues could be impacted by several factors, such as our flight schedules, passenger fares we receive under our prorate agreements, terminations, extensions or other amendments to our code-share agreements, our estimates used to determine the amount of revenue we defer under our capacity purchase agreements, and our ability to earn incentive payments contemplated under applicable agreements.
Our revenues could be impacted by several factors, such as our flight schedules, passenger fares we receive under our prorate agreements, terminations, extensions or other amendments to our code-share agreements (which may also cause a reassessment of stand-alone selling prices of the lease and non-lease consideration), our estimates used to determine the amount of revenue we defer under our capacity purchase agreements, and our ability to earn incentive payments contemplated under applicable agreements.
Timing of placing these additional aircraft into service, including delivery timing on acquired aircraft, may be subject to change as we are coordinating with our major airline partners in response to labor availability or other factors.
We also have multiple agreements with United to place 23 used CRJ550 aircraft into service in 2026. Timing of placing these additional aircraft into service, including delivery timing on acquired aircraft, may be subject to change as we are coordinating with our major airline partners in response to labor availability or other factors.
Overview We have the largest regional airline operation in the United States. As of December 31, 2024, we offered scheduled passenger and air freight service with approximately 2,190 total daily departures to destinations in the United States, Canada and Mexico.
Overview We have the largest regional airline operation in the United States through our operating subsidiary SkyWest Airlines. As of December 31, 2025, we offered scheduled passenger and air freight service with approximately 2,260 total daily departures to destinations in the United States, Canada and Mexico.
For the year ended December 31, 2024, approximately 43.9% of our aircraft in scheduled service or under contract were operated for United, approximately 29.1% were operated for Delta, approximately 18.5% were operated for American and approximately 8.5% were operated for Alaska.
For the year ended December 31, 2025, approximately 44.4% of our aircraft in scheduled service or under contract were operated for United, approximately 28.1% were operated for Delta, approximately 18.9% were operated for American and approximately 8.6% were operated for Alaska.
For clarity, under our “Capacity purchase agreements flight operations revenue” and “Capacity purchase agreements aircraft lease revenue” combined, we recognized $44.9 million of previously deferred revenue, net of unbilled revenue, during the year ended December 31, 2024, compared to deferring revenue, net of unbilled revenue, of $242.5 million during the year ended December 31, 2023.
For clarity, under our “Capacity purchase agreements flight operations revenue” and “Capacity purchase agreements aircraft lease revenue” combined, we recognized a total of $57.8 million of previously deferred revenue and unbilled revenue during the year ended December 31, 2025, compared to recognizing a total of $44.9 million of previously deferred revenue and unbilled revenue during the year ended December 31, 2024.
Cash Flows used in Investing Activities Our cash flows used in investing activities was $228.6 million for the year ended December 31, 2024, compared to $23.2 million for the year ended December 31, 2023.
Cash Flows used in Investing Activities Our cash flows used in investing activities was $651.8 million for the year ended December 31, 2025, compared to cash flows used in investing activities of $228.6 million for the year ended December 31, 2024.
Future minimum lease payments due under all long-term operating leases were approximately $129.3 million at December 31, 2024.
Future minimum lease payments due under all long-term operating leases were approximately $119.0 million at December 31, 2025.
The $13.2 million, or 18.2%, increase in airport-related expenses for the year ended December 31, 2024, compared to the year ended December 31, 2023, was primarily due to an increase in subcontracted airport services, weather related aircraft deicing costs and landing fees as a result of an increase in the number of flights we operated under our prorate agreements. 36 Table of Contents Aircraft rentals.
The $35.8 million, or 41.7%, increase in airport-related expenses for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in subcontracted airport services, station rents, weather related aircraft deicing costs and landing fees as a result of an increase in the number of flights we operated under our prorate agreements.
Our average effective interest rate for 2024 and 2023 was 4.2% and 4.1%, respectively. Interest income. Interest income increased $4.0 million, from $43.9 million during the year ended December 31, 2023 to $47.9 million during the year ended December 31, 2024.
Our average effective interest rate for 2025 and 2024 was 4.3% and 4.2%, respectively. Interest income. Interest income decreased $4.6 million, from $47.9 million for the year ended December 31, 2024 to $43.3 million for the year ended December 31, 2025.
The increase in cash used in investing activities, excluding the transfer of dollars between our investments in marketable securities and our cash accounts, was primarily due to an increase of $59.4 million used in the acquisition of property and equipment for the year ended December 31, 2024, compared to the year ended December 31, 2023, primarily due to the acquisition of five new E175 aircraft in 2024.
Excluding the transfer of dollars between our investments in marketable securities and our cash accounts, the remaining increase in cash used in investing activities was primarily due to an increase of $267.3 million used in the acquisition of property and equipment and an increase of $57.8 million used for aircraft deposits for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to the acquisition of seven new E175 aircraft and spare engines in 2025.
At December 31, 2024, our total capital mix (measured as a ratio of total stockholder equity 39 Table of Contents and total long-term debt, including current maturities) was 47.4% equity and 52.6% total long-term debt, compared to 41.3% equity and 58.7% total long-term debt at December 31, 2023.
At December 31, 2025, our total capital mix (measured as a ratio of total stockholder equity and total long-term debt, including current maturities) was 53.4% equity and 46.6% total long-term debt, compared to 47.4% equity and 52.6% total long-term debt at December 31, 2024.
The $1.5 million, or 1.7%, increase in fuel cost was primarily due to an increase in the number of flights we operated under our prorate agreements and under SWC and the corresponding increase in gallons of fuel we purchased, offset by a decrease in our average fuel cost per gallon from $3.70 in 2023 to $3.19 in 2024.
The $33.0 million, or 37.7%, increase in fuel cost for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in the number of flights we operated under our prorate agreements and under SWC and the corresponding increase in gallons of fuel we purchased, offset by a decrease in our average fuel cost per gallon from $3.19 in 2024 to $3.00 in 2025.
Our investing cash flows are typically impacted by various factors including our capital expenditures, such as the acquisition of aircraft and spare engines; deposit payments; purchase and sales of marketable securities; proceeds from the sale of assets; and timing of cash payments and cash receipts attributed to our various long-term asset and long-term liability accounts.
Our investing cash flows are typically impacted by various factors including our capital expenditures, such as the acquisition of aircraft and spare engines; deposit payments and refunds of previously made deposits on new aircraft; purchase and sales of marketable securities; proceeds from the sale of assets; and timing of cash payments and cash receipts attributed to our investments in other entities.
Additional details regarding the increase in our operating expenses are described in the section of this Report entitled “Results of Operations.” Fleet Activity The following table summarizes our fleet scheduled for service or under contract as of 2024: Aircraft in Service or Under Contract December 31, 2023 Additions Removals December 31, 2024 E175s 237 25 — 262 CRJ900s 41 — (5) 36 CRJ700/CRJ550s 118 23 (22) 119 CRJ200s 89 — (14) 75 Total 485 48 (41) 492 During 2024, we took delivery of five new E175 aircraft and placed the aircraft into service under capacity purchase agreements and we placed 20 partner-financed E175 aircraft into service under a capacity purchase agreement.
Additional details regarding the increase in our operating expenses are described in the section of this Report entitled “Results of Operations.” Fleet Activity The following table summarizes our fleet in service or under contract as of December 31, 2024 and December 31, 2025: Aircraft in Service or Under Contract December 31, 2024 Additions Removals December 31, 2025 E175s 262 8 — 270 CRJ900s 36 4 (4) 36 CRJ700/CRJ550s 119 18 (14) 123 CRJ200s 75 — (17) 58 Total 492 30 (35) 487 During 2025, we took delivery of seven new E175 aircraft and placed the aircraft into service under capacity purchase agreements, and we placed one partner-financed E175 aircraft into service under a capacity purchase agreement.
Our total of cash, cash equivalents and marketable securities decreased from $835.2 million as of December 31, 2023, to $801.6 million as of December 31, 2024, or by $33.6 million.
Our total cash, cash equivalents and marketable securities decreased from $801.6 million as of December 31, 2024, to $706.9 million as of December 31, 2025, or by $94.7 million.
Operating Expenses Our total operating expenses increased $201.9 million, or 7.1%, for the year ended December 31, 2024, compared to the year ended December 31, 2023.
Operating Expenses Our total operating expenses increased $407.1 million, or 13.4%, for the year ended December 31, 2025, compared to the year ended December 31, 2024.
We intend to fund the purchase of the four used CRJ550 aircraft through cash on hand. Aircraft Lease and Facility Obligations We also have long-term lease obligations, primarily relating to our facilities, aircraft and engines.
We intend to use cash to purchase the two used E170 aircraft. Aircraft Lease and Facility Obligations We also have long-term lease obligations, primarily relating to our facilities, aircraft and engines.
SkyWest Airlines and SWC’s interest expense decreased $4.1 million, or 24.3%, primarily due a decrease in outstanding debt from December 31, 2023 to December 31, 2024.
SkyWest Airlines and SWC’s interest expense decreased $1.2 million, or 9.4%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to a decrease in outstanding debt from December 31, 2024 to December 31, 2025.
The increase in prorate agreements and SWC revenue of $76.0 million, or 19.9%, was primarily due to an increase in prorate passengers and passenger revenue we received on routes we operated under our prorate agreements during the year ended December 31, 2024, compared to the year ended December 31, 2023.
The increase in prorate agreements and SWC revenue of $153.0 million, or 33.5%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in prorate departures, passengers and passenger revenue we received on routes we operated under our prorate agreements driven by an improvement in the number of available captains during the year ended December 31, 2025, compared to the year ended December 31, 2024.
For the year ended December 31, 2024, our capacity purchase revenue represented approximately 86.6% of our total flying agreements revenue and our prorate and SWC revenue, combined, represented approximately 13.4% of our total flying agreements revenue.
For the year ended December 31, 2025, our capacity purchase revenue represented approximately 84.3% of our total flying agreements revenue and our prorate and SWC revenue, combined, represented approximately 15.7% of our total flying agreements revenue.
For the year ended December 31, 2023, we deferred recognizing $164.0 million of revenue, net of unbilled revenue, related to the non-lease fixed monthly payments received associated with our flight operations revenues.
For the year ended December 31, 2024, we recognized a total of $43.4 million of previously deferred revenue and unbilled revenue related to non-lease fixed monthly payments received associated with our flight operations revenues.
SkyWest Airlines and SWC’s salaries, wages and benefits expense increased $141.3 million, or 10.7%, primarily due to an increase in direct labor costs that resulted from the higher number of flights we operated during the year ended December 31, 2024, compared to the year ended December 31, 2023.
SkyWest Airlines and SWC’s salaries, wages and benefits expense increased $95.4 million, or 6.5%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to an increase in direct labor costs that resulted from the higher number of flights we operated, partially offset by operating efficiencies from higher utilization of our aircraft during the year ended December 31, 2025, compared to the year ended December 31, 2024.
We control scheduling, pricing and seat inventories on certain prorate routes, and we share passenger fares with our major airline partners according to prorate formulas. We are also responsible for the operating costs of the prorate flights, including fuel and airport costs.
We control scheduling, pricing and seat inventories on certain prorate routes, and we share passenger fares with our major airline partners according to prorate formulas.
Our Business Segments 2024 compared to 2023 : Our reporting segments consist of (1) the operations of SkyWest Airlines and SWC, which had its first revenue generating flight in 2023, (collectively, “SkyWest Airlines and SWC”) and (2) SkyWest Leasing activities.
Our Business Segments 2025 compared to 2024 : Our reportable segments consist of (1) the operations of SkyWest Airlines and SWC (collectively, “SkyWest Airlines and SWC”) and (2) SkyWest Leasing activities.
The following table summarizes the gallons of fuel we purchased under our prorate agreements and SWC, for the periods indicated: For the year ended December 31, (in thousands) 2024 2023 % Change Fuel gallons purchased 27,386 23,198 18.1 % Fuel expense $ 87,409 $ 85,913 1.7 % Airport-related expenses .
The following table summarizes the gallons of fuel we purchased under our prorate agreements and SWC, for the periods indicated: For the year ended December 31, (in thousands) 2025 2024 % Change Fuel gallons purchased 40,160 27,386 46.6 % Fuel expense $ 120,368 $ 87,409 37.7 % 37 Table of Contents Other operating expenses.
Departures increased from 691,962 for the year ended December 31, 2023 to 766,742 for the year ended December 31, 2024, or by 10.8%, and our total block hours increased 13.3% in 2024, as compared to 2023.
Departures increased from 766,742 for the year ended December 31, 2024 to 863,513 for the year ended December 31, 2025, or by 12.6%, and our total block hours increased 14.7% in 2025, as compared to 2024.
Results of Operations 2024 Compared to 2023 Operational Statistics The following table sets forth our major operational statistics and the associated percentage changes for the periods identified below.
We are evaluating alternative uses for the CRJ200 aircraft removed from service. 34 Table of Contents Results of Operations 2025 Compared to 2024 Operational Statistics The following table sets forth our major operational statistics and the associated percentage changes for the periods identified below.
We placed 23 SkyWest owned CRJ550 aircraft into service under a capacity purchase agreement or prorate agreement, while removing 22 CRJ700 aircraft from flying agreements. We also removed 14 CRJ200 aircraft from service during 2024. We are evaluating alternative uses for the CRJ200 aircraft removed from service.
We placed 18 SkyWest owned CRJ550 aircraft into service under a capacity purchase agreement or prorate agreement, while removing 14 CRJ700 aircraft from flying agreements. We placed four SkyWest owned CRJ900 aircraft into service under a prorate agreement while removing four partner-financed CRJ900 aircraft from flying agreements. We also removed 17 CRJ200 aircraft from service during 2025.
The anticipated future aircraft delivery dates are subject to change. As of December 31, 2024, we had a firm purchase commitment for 16 new E175 aircraft from Embraer with delivery dates anticipated into 2026. We also have a firm purchase commitment to purchase four used CRJ550 aircraft with anticipated delivery dates in 2025.
Purchase Commitments and Options As of December 31, 2025, we had a firm purchase commitment for 69 new E175 aircraft from Embraer with delivery dates anticipated into 2032. We also had firm purchase commitments to purchase two used E170 aircraft with anticipated delivery dates in 2026.
The increase in block hours, departures and passengers carried during the year ended December 31, 2024, compared to the year ended December 31, 2023, w as primarily due to an increase in the number of available captains during 2024, compared to 2023, which allowed for a higher scheduled utilization of our aircraft. For the year ended December 31, Block hours by aircraft type: 2024 2023 % Change E175s 792,318 677,886 16.9 % CRJ900s 84,883 76,588 10.8 % CRJ700s 244,909 218,059 12.3 % CRJ200s 169,930 167,910 1.2 % Total block hours 1,292,040 1,140,443 13.3 % Departures 766,742 691,962 10.8 % Passengers carried 42,335,302 38,597,309 9.7 % Passenger load factor 82.8 % 83.6 % (0.8) pts Average passenger trip length (miles) 464 453 2.4 % Operating Revenues The following table summarizes our operating revenue for the periods indicated (dollar amounts in thousands): For the year ended December 31, 2024 2023 $ Change % Change Flying agreements $ 3,412,798 $ 2,834,397 $ 578,401 20.4 % Lease, airport services and other 115,122 101,035 14,087 13.9 % Total operating revenues $ 3,527,920 $ 2,935,432 $ 592,488 20.2 % 34 Table of Contents Flying agreements revenue primarily consists of revenue earned on flights we operate under our capacity purchase agreements and prorate agreements with our major airline partners and on-demand charter flights.
The increase in block hours, departures and passengers carried during the year ended December 31, 2025, compared to the year ended December 31, 2024, w as primarily due to an increase in the number of block hours incurred per aircraft as the number of available captains did not significantly limit our flight schedules during 2025, compared to 2024, which allowed for a higher scheduled utilization of our aircraft. For the year ended December 31, Block hours by aircraft type: 2025 2024 % Change E175s 863,876 792,318 9.0 % CRJ900s 94,568 84,883 11.4 % CRJ700s/CRJ550s 329,347 244,909 34.5 % CRJ200s 193,932 169,930 14.1 % Total block hours 1,481,723 1,292,040 14.7 % Departures 863,513 766,742 12.6 % Passengers carried 46,021,999 42,335,302 8.7 % Passenger load factor 81.5 % 82.8 % (1.3) pts Average passenger trip length (miles) 457 464 (1.5) % Operating Revenues The following table summarizes our operating revenue for the periods indicated (dollar amounts in thousands): For the year ended December 31, 2025 2024 $ Change % Change Flying agreements $ 3,885,153 $ 3,412,798 $ 472,355 13.8 % Lease, airport services and other 173,049 115,122 57,927 50.3 % Total operating revenues $ 4,058,202 $ 3,527,920 $ 530,282 15.0 % Flying agreements revenue primarily consists of revenue earned on flights we operate under our capacity purchase agreements and prorate agreements with our major airline partners and on-demand charter flights.
SkyWest Airlines and SWC segment profit was $138.9 million for the year ended December 31, 2024, compared to a segment loss of $165.2 million for the year ended December 31, 2023.
(2) Segment profit is equal to income before income taxes. SkyWest Airlines and SWC Segment Profit. SkyWest Airlines and SWC segment profit was $263.0 million for the year ended December 31, 2025, compared to $138.9 million for the year ended December 31, 2024.
Significant items contributing to the SkyWest Airlines and SWC segment profit for the year ended December 31, 2024 are set forth below. SkyWest Airlines and SWC operating revenues increased $513.2 million, or 21.5%, from 2024 to 2023.
Significant items contributing to the SkyWest Airlines and SWC segment profit for the year ended December 31, 2025 are set forth below.
The $141.3 million, or 10.7%, increase in salaries, wages and benefits was due to an increase in direct labor costs that resulted from the higher number of flights we operated during the year ended December 31, 2024, compared to the year ended December 31, 2023. Aircraft maintenance, materials and repairs.
The $95.4 million, or 6.5%, increase in salaries, wages and benefits for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in direct labor costs that resulted from the higher number of flights we operated, partially offset by operating efficiencies from higher utilization of our aircraft during the year ended December 31, 2025, compared to the year ended December 31, 2024.
The $283.1 million decrease in cash used in financing activities for the year ended December 31, 2024, compared to the year ended December 31, 2023, w as primarily due to a decrease of $248.6 million in cash used to purchase treasury stock and an increase of $46.5 million in proceeds from the issuance of long-term debt, offset by an increase of $5.3 million in principal payments on long-term debt and an increase of $6.3 million for employee income taxes paid on vested equity awards during the year ended December 31, 2024, compared to the year ended December 31, 2023.
Our financing cash flows are typically impacted by various factors including proceeds from issuance of debt, principal payments on debt obligations, repurchases of our common stock and payment of cash dividends. 41 Table of Contents The $8.5 million increase in cash used in financing activities for the year ended December 31, 2025, compared to the year ended December 31, 2024, w as primarily due to an increase of $41.6 million in cash used to purchase treasury stock and an increase of $20.3 million in cash used for employee income taxes paid on vested equity awards in lieu of shares, offset by an increase of $53.6 million in proceeds from the issuance of long-term debt for the purchase of seven new E175 aircraft, net of principal payments on long-term debt during the year ended December 31, 2025, compared to the year ended December 31, 2024.
Additionally, the increase in SkyWest Airlines and SWC operating revenues was attributed to an increase in block hour production during the year ended December 31, 2024, compared to the year ended December 31, 2023.
SkyWest Airlines and SWC operating revenues increased $509.7 million, or 17.5%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to an increase in block hour production during the year ended December 31, 2025, compared to the year ended December 31, 2024.
Under our capacity purchase agreements, our major airline partners compensate us for our costs of owning the aircraft on a monthly basis.
Under our capacity purchase agreements, our major airline partners compensate us for our costs of the aircraft on a monthly basis. The consideration for aircraft ownership costs we receive varies by agreement but is intended to compensate us for our ownership of the aircraft while the aircraft is under contract.
Airport-related expenses include airport-related customer service costs such as outsourced airport gate and ramp agent services, airport security fees, passenger interruption costs, deicing, landing fees and station rents. For clarity, our employee airport customer service labor costs are reflected in salaries, wages and benefits and customer service labor costs we outsource to third parties are included in airport-related expenses.
Airport-related expenses . Airport-related expenses include airport-related customer service costs such as outsourced airport gate and ramp agent services, airport security fees, passenger interruption costs, deicing, landing fees and station rents.
As of December 31, 2024, we had 624 total aircraft in our fleet, including 492 aircraft in scheduled service or under contract pursuant to our code-share agreements, summarized as follows: E175 CRJ900 CRJ700/CRJ550 CRJ200 Total United 114 — 27 75 216 Delta 86 36 21 — 143 American 20 — 71 — 91 Alaska 42 — — — 42 Aircraft in scheduled service or under contract 262 36 119 75 492 SWC — — — 18 18 Leased to third parties — 5 35 — 40 Other (1) — 8 20 46 74 Total Fleet 262 49 174 139 624 (1) As of December 31, 2024, other aircraft included: supplemental spare aircraft supporting our code-share agreements that may be placed under future code-share or leasing arrangements, aircraft transitioning between code-share agreements with our major airline partners or aircraft that are scheduled to be disassembled for use as spare parts.
As of December 31, 2025, we had 637 total aircraft in our fleet, including 487 aircraft in scheduled service or under contract pursuant to our code-share agreements, summarized as follows: E175 CRJ900 CRJ700/CRJ550 CRJ200 Total United 121 — 37 58 216 Delta 87 32 18 — 137 American 20 4 68 — 92 Alaska 42 — — — 42 Aircraft in scheduled service or under contract 270 36 123 58 487 SWC — — — 11 11 Leased to third parties — 5 40 — 45 Other (1) — 10 15 69 94 Total Fleet 270 51 178 138 637 (1) As of December 31, 2025, other aircraft included: supplemental spare aircraft supporting our code-share agreements that may be placed under future code-share or leasing agreements, aircraft scheduled to be placed under a code-share agreement with one of our major airline partners or aircraft that are scheduled to be disassembled for use as spare parts.
The decrease in other income, net was primarily due to a decrease in gains from the sale of assets and a decrease in unrealized gains on our investments in other companies for the year ended December 31, 2024, compared to the year ended December 31, 2023. Provision for income taxes.
The increase in other income, net of expenses was primarily a result of an increase in the fair value of our investments in other companies for the year ended December 31, 2025, compared to the year ended December 31, 2024. Provision for income taxes.
Additionally, aircraft removed from SkyWest Airlines operations and held for sale are included in the SkyWest Leasing segment. 37 Table of Contents Corporate overhead expenses, primarily consisting of administrative labor costs, were allocated to the operating expenses of SkyWest Airlines and SWC and SkyWest Leasing.
Corporate overhead expenses, primarily consisting of administrative labor costs, were allocated to the operating expenses of SkyWest Airlines and SWC and SkyWest Leasing.