Frontier Group Holdings, Inc.

Previous wording

Total operating expenses during the year ended December 31, 2024 increased to $3,717 million, resulting in a cost per available seat mile (“CASM”) of 9.32¢, a decrease of 2% compared to the year ended December 31, 2023. Fuel expense was $89 million lower, as compared to the corresponding prior year period. This 8% decrease in fuel expense for the year ended December 31, 2024 was primarily driven by the 12% decrease in fuel cost per gallon, partially offset by the 5% increase in fuel gallons consumed, as a result of our 5% capacity increase.

Current wording

Total operating expenses during the year ended December 31, 2025 increased to $3,873 million, resulting in a cost per available seat mile (“CASM”) of 9.74¢, an increase of 5% compared to the year ended December 31, 2024. Fuel expense was $112 million lower, as compared to the corresponding prior year period. This 11% decrease in fuel expense for the year ended December 31, 2025 was primarily driven by a 10% decrease in fuel cost per gallon, as well as the 2% decrease in fuel gallons consumed.

Previous wording

Our non-fuel expenses increased by 9% during the year ended December 31, 2024, as compared to the corresponding prior year period, driven primarily by higher capacity and a larger fleet size and the resulting increase in operations during the same period, partially offset by an increase in sale-leaseback gains, the cost benefit from our network simplification, and a legal settlement. CASM (excluding fuel), a non-GAAP measure, increased 3% to 6.71¢, on a 5% increase in capacity, for the year ended December 31, 2024, as compared to the corresponding prior year period, due to the aforementioned drivers of increased non-fuel expenses.

Current wording

Our non-fuel expenses increased by 10% during the year ended December 31, 2025, as compared to the corresponding prior year period, driven primarily by increased aircraft rent due to a larger fleet, increased station costs due to station mix and rate inflation, increased employee costs, and the benefit from a legal settlement in the prior period, partially offset by lower lease return costs during the same period. CASM (excluding fuel), a non-GAAP measure, increased 10% to 7.41¢, while capacity remained consistent, for the year ended December 31, 2025, as compared to the corresponding prior year period, due to the aforementioned drivers of increased non-fuel expenses.

Previous wording

Adjusted CASM (excluding fuel), a non-GAAP measure, increased from 6.50¢ for the year ended December 31, 2023 to 6.81¢ for the year ended December 31, 2024, and Adjusted CASM (excluding fuel), SLA 1,000, a non-GAAP measure, decreased from 6.52¢ for the year ended December 31, 2023 as compared to 6.44¢ for the year ended December 31, 2024. For the year ended December 31, 2024, Adjusted CASM (excluding fuel) excludes the impact of $38 million related to the legal settlement, and for the year ended December 31, 2023, Adjusted CASM

Current wording

Adjusted CASM (excluding fuel), a non-GAAP measure, increased from 6.81¢ for the year ended December 31, 2024 to 7.41¢ for the year ended December 31, 2025. There were no adjustments for the year ended December 31, 2025. For the year ended December 31, 2024, Adjusted CASM (excluding fuel) excludes the impact of $38 million related to a legal settlement.

Previous wording

We generated net income of $85 million during the year ended December 31, 2024, compared to a net loss of $11 million for the year ended December 31, 2023. After giving effect to the aforementioned non-GAAP operating adjustments and related tax impacts, as well as the $5 million valuation allowance and the write-off of $1 million in unamortized deferred financing costs for the year ended December 31, 2024, and the $37 million valuation allowance in the year ended December 31, 2023, our adjusted net income, a non-GAAP measure, was $53 million and $28 million, respectively, for the years ended December 31, 2024 and 2023.

Current wording

We generated a net loss of $137 million during the year ended December 31, 2025, compared to a net income of $85 million for the year ended December 31, 2024. There were no non-GAAP adjustments for the year ended December 31, 2025. Considering the aforementioned non-GAAP adjustments and the $5 million valuation allowance and the write-off of $1 million in unamortized deferred financing costs for the year ended December 31, 2024, our adjusted net income, a non-GAAP measure, was $53 million for the year ended December 31, 2024.

Previous wording

As of December 31, 2024, our total available liquidity was $935 million, made up of unrestricted cash and cash equivalents, including $205 million of funds available to be drawn under our revolving loan facility.

Current wording

As of December 31, 2025, our total available liquidity was $874 million, consisting of $654 million of unrestricted cash and cash equivalents and availability of $220 million under our revolving line of credit (the “Revolving Loan Facility”).

Previous wording

Competition. The airline industry is highly competitive. The principal competitive factors in the airline industry are the fare and total price, flight schedules, number of routes served from a city, frequent flyer programs, product and passenger amenities, customer service, fleet type and reputation. The airline industry is particularly susceptible to price discounting as once a flight is scheduled, airlines incur only nominal incremental costs to provide service to passengers occupying otherwise unsold seats. Price competition occurs on a route-by-route basis through price discounts, changes in pricing structures, fare matching, target promotions and frequent flyer initiatives. Airlines typically use discount fares and other promotions to stimulate traffic during normally slower travel periods to generate cash flow and to maximize RASM. The prevalence of discount fares can be particularly acute when a competitor has excess capacity that it is under financial pressure to sell. A key element of our competitive strategy is to maintain very low unit costs in order to permit us to compete successfully in price-sensitive markets. In addition, some of the legacy network carriers match LCC and ULCC pricing on portions of their network, including through the selective deployment of so-called “basic economy” fares. We believe that fare discounts, along with more customer optionality over product offerings, have and will continue to stimulate demand for Frontier due to our Low Fares Done Right strategy.

Current wording

Competition. The airline industry is highly competitive. The principal competitive factors in the airline industry are the fare and total price, flight schedules, number of routes served from a city, frequent flyer programs, product and passenger amenities, customer service, fleet type and reputation. The airline industry is particularly susceptible to price discounting as once a flight is scheduled, airlines incur only nominal incremental costs to provide service to passengers occupying otherwise unsold seats. Price competition occurs on a route-by-route basis through price discounts, changes in pricing structures, fare matching, target promotions and frequent flyer initiatives. Airlines typically use discount fares and other promotions to stimulate traffic during normally slower travel periods to generate cash flow and to maximize RASM. The prevalence of discount fares can be particularly acute when a competitor has excess capacity that it is under financial pressure to sell. A key element of our competitive strategy is to maintain very low unit costs in order to permit us to compete successfully in price-sensitive markets. In addition, some of the legacy network carriers match LCC and ULCC pricing on portions of their network, including through the selective deployment of so-called “basic economy” fares. We believe that fare discounts, along with more customer optionality over product offerings and enhancements to our frequent flyer program, have and will continue to stimulate demand for Frontier.

Previous wording

Our Low Fares Done Right strategy is underpinned by our low-cost structure, and has significantly reduced our cost base by optimizing aircraft utilization with disciplined capacity deployment across peak and off peak periods to align capacity with expected travel demand patterns, transitioning to larger and more fuel-efficient aircraft, maximizing seat density, renegotiating the majority of our distribution agreements, realigning and simplifying our network, enhancing our website and mobile app, boosting employee productivity and contracting with leading specialists to provide us with select operating and other services.

Current wording

Our strategy is underpinned by our low-cost structure, and has significantly reduced our cost base by optimizing aircraft utilization to align capacity with expected travel demand patterns, transitioning to larger and more fuel-efficient aircraft, maximizing seat density, renegotiating the majority of our distribution agreements, realigning and simplifying our network, enhancing our website and mobile app, boosting employee productivity and contracting with leading specialists to provide us with select operating and other services.

Previous wording

Our cost structure has generally allowed us to achieve strong results from operations relative to the rest of the industry during periods of competitive pricing and price discounts. We believe that we are well positioned to maintain our low unit operating costs relative to our competitors through on-going strategic initiatives, including continuing our cost optimization efforts and further realizing economies of scale. To the extent that we are unable to maintain our low-cost structure, our ability to compete effectively may be impaired. In addition, if our competitors engage in fare wars or similar behavior, our financial performance could be adversely impacted.

Current wording

We believe that we are well positioned to maintain our low unit operating costs relative to our competitors through on-going strategic initiatives, including continuing our cost optimization efforts, planned increases in aircraft utilization and further realizing economies of scale. To the extent that we are unable to maintain our low-cost structure, our ability to compete effectively may be impaired. In addition, if our competitors engage in fare wars or similar behavior, our financial performance could be adversely impacted.

Previous wording

Seasonality. Our results of operations for any interim period are not necessarily indicative of those for the entire year because the air transportation business and our route network are subject to seasonal fluctuations. We generally expect demand to be greater in the second and third quarters compared to the rest of the year. While we have, over recent years, reduced our concentration in Denver to decrease the impact of seasonality in our business, 23% of our flights during the year ended December 31, 2024 had Denver International Airport as either their origin or destination, as compared to 24% of our flights during the year ended December 31, 2023.

Current wording

Seasonality. Our results of operations for any interim period are not necessarily indicative of those for the entire year because the air transportation business and our route network are subject to seasonal fluctuations. We generally expect demand to be greater in the summer months and less in the winter months, apart from the holiday season. As we increase our routes in other markets, we have reduced our concentration in Denver to decrease the impact of seasonality in our business. During the year ended December 31, 2025, 21% of our flights had Denver International Airport as either their origin or destination, as compared to 23% of our flights during the year ended December 31, 2024.

Previous wording

We have seven union-represented employee groups comprising approximately 87% of our employees as of December 31, 2024. Our pilots are represented by the Air Line Pilots Association (“ALPA”); our flight attendants are represented by the Association of Flight Attendants (“AFA-CWA”); our aircraft technicians, aircraft appearance agents, material specialists and maintenance controllers are all represented by the International Brotherhood of Teamsters (“IBT”); and our dispatchers are represented by the Transport Workers Union (“TWU”). We are currently in negotiations with the ALPA, the AFA-CWA and the IBT regarding the next labor contract. Please refer to “Notes to Consolidated Financial Statements — 12. Commitments and Contingencies” for additional information.

Current wording

We have seven union-represented employee groups comprising approximately 86% of our employees as of December 31, 2025. Our pilots are represented by the Air Line Pilots Association (“ALPA”); our flight attendants are represented by the Association of Flight Attendants (“AFA-CWA”); our aircraft technicians, aircraft appearance agents, material specialists and maintenance controllers are all represented by the International Brotherhood of Teamsters (“IBT”); and our dispatchers are represented by the Transport Workers Union (“TWU”). We are currently in negotiations with the ALPA, AFA-CWA, and aircraft technicians represented by IBT regarding the next labor contract. Please refer to “Notes to Consolidated Financial Statements — 11. Commitments and Contingencies” for additional information.

Previous wording

As of December 31, 2024, the average age of our aircraft was approximately five years and all of the aircraft in our fleet were financed with operating leases, the last of which is scheduled to expire in 2036. Please refer to “Notes to Consolidated Financial Statements — 9. Operating Leases” for further discussion. We expect that these new aircraft will require less maintenance when they are first placed into service (sometimes called a “maintenance holiday”) because the aircraft will benefit from manufacturer warranties and also will be able to operate for a significant period of time, generally measured in years, before the most expensive scheduled maintenance obligations, known as heavy maintenance, are required. Once these maintenance holidays expire, these aircraft will require more maintenance as they age and our maintenance and repair expenses for each of our aircraft will be incurred at approximately the same intervals. When these more significant maintenance activities occur, this will result in out-of-service periods during which our aircraft are dedicated to maintenance activities and unavailable to generate revenue.

Current wording

As of December 31, 2025, the average age of our aircraft was approximately five years and all of the aircraft in our fleet were financed with operating leases, the last of which is scheduled to expire in 2037. Please refer to “Notes to Consolidated Financial Statements — 8. Operating Leases” for further discussion. We expect that these new aircraft will require less maintenance when they are first placed into service (sometimes called a “maintenance holiday”) because the aircraft will benefit from manufacturer warranties and also will be able to operate for a significant period of time, generally measured in years, before the most expensive scheduled maintenance obligations, known as heavy maintenance, are required. Once these maintenance holidays expire, these aircraft will require more maintenance as they age and our maintenance and repair expenses for each of our aircraft will be incurred at approximately the same intervals. When these more significant maintenance activities occur, this will result in out-of-service periods during which our aircraft are dedicated to maintenance activities and unavailable to generate revenue.

Previous wording

Pratt & Whitney. Since 2022, we have introduced aircraft into our fleet that use the Pratt & Whitney PW1100 Geared Turbo Fan (“GTF”) engine, and we have selected this engine for most of our planned future deliveries. During 2023, Pratt & Whitney announced the requirement, mandated by the FAA, that certain engines be removed for inspection due to a possible condition in the powdered metal used to manufacture certain engine parts. This will require accelerated inspection of the PW1100 GTF engine, which we use for certain of our A320neo family aircraft, and could result in lengthy turnaround times to perform these inspections including any resulting repairs or other modifications that may be identified. Although our operations have not been impacted as of December 31, 2024, this inspection program may have an adverse impact on our operations, particularly when we are required to temporarily take aircraft out of service. We continue to assess the impact on our future capacity plans and we are in communication with Pratt & Whitney regarding compensation related to this matter.

Current wording

Pratt & Whitney. Since 2022, we have introduced aircraft into our fleet that use the Pratt & Whitney PW1100 Geared Turbo Fan (“GTF”) engine, and we have selected this engine for our planned future deliveries. During 2023, Pratt & Whitney announced the requirement, mandated by the U.S. Federal Aviation Administration, that certain engines be removed for inspection due to a possible condition in the powdered metal used to manufacture certain engine parts. This will require accelerated inspection of the PW1100 GTF engine, which we use for certain of our A320neo family aircraft, and could result in lengthy turnaround times to perform these inspections, including any resulting repairs or other modifications that may be identified. Although our operations have not been impacted as of December 31, 2025, this inspection program may have an adverse impact on our operations, particularly when we are required to temporarily take aircraft out of service. We do not anticipate this impacting our future capacity.

Previous wording

Total operating revenues increased $186 million, or 5%, during the year ended December 31, 2024, as compared to the year ended December 31, 2023. While capacity grew by 5%, as measured by ASMs, RASM remained consistent due to a 5% decline in revenue per passenger and a 5-point reduction in load factor, offset by a 10% increase in passengers on an 11% decrease in stage length. The increase in capacity was driven by the 16% increase in average aircraft in service during the year ended December 31, 2024, as compared to the year ended December 31, 2023, partially offset by a 9% decrease in average daily aircraft utilization for the corresponding prior year period due primarily to our disciplined capacity deployment focused on peak days of the week.

Current wording

Total operating revenues decreased $51 million, or 1%, during the year ended December 31, 2025, as compared to the year ended December 31, 2024. Revenue was unfavorably impacted by the 1% decrease in RASM, driven by 3% higher average stage length, supported by 5% fewer departures, and a 1% decrease in total revenue per passenger, partially offset by the 1.6-point increase in load factor compared to the corresponding prior year period. Capacity, as measured by ASMs, for the year ended December 31, 2025 as compared to the year ended December 31, 2024, remained consistent due to an 11% increase in average aircraft in service, offset by an 11% decrease in average daily aircraft utilization.

Previous wording

Aircraft Fuel. Aircraft fuel expense decreased by $89 million, or 8%, during the year ended December 31, 2024, as compared to the year ended December 31, 2023. The decrease was primarily due to a 12% decrease in fuel cost per gallon, partially offset by the 5% increase in gallons consumed, driven by higher capacity.

Current wording

Aircraft Fuel. Aircraft fuel expense decreased by $112 million, or 11%, during the year ended December 31, 2025, as compared to the year ended December 31, 2024. The decrease was primarily due to a 10% decrease in fuel cost per gallon, as well as a 2% decrease in gallons consumed.

Previous wording

Salaries, Wages and Benefits. Salaries, wages and benefits expense increased by $96 million, or 11%, during the year ended December 31, 2024, as compared to the year ended December 31, 2023. The increase was due to higher crew costs driven primarily by the growth in the business, as well as other employee benefit costs and increased salaried support staff costs, partially offset by efficiencies from our network simplification as compared to the corresponding prior year period.

Current wording

Salaries, Wages and Benefits. Salaries, wages and benefits expense increased by $62 million, or 6%, during the year ended December 31, 2025, as compared to the year ended December 31, 2024. The increase was primarily due to higher crew, employee benefits and incentives, and salary costs, as compared to the corresponding prior year period.

Previous wording

Aircraft Rent. Aircraft rent expense increased by $121 million, or 22%, during the year ended December 31, 2024, as compared to the year ended December 31, 2023, primarily due to a larger fleet and increased aircraft lease return costs.

Current wording

Aircraft Rent. Aircraft rent expense increased by $73 million, or 11%, during the year ended December 31, 2025, as compared to the year ended December 31, 2024, primarily due to a larger fleet, partially offset by lower aircraft lease return costs.

Previous wording

Station Operations. Station operations expense increased by $121 million, or 23%, during the year ended December 31, 2024, as compared to the year ended December 31, 2023, primarily due to increased airport operations as a result of the 15% increase in departures and 10% increase in passengers, partially offset by increased benefits from airport revenue and cost sharing arrangements.

Current wording

Station Operations. Station operations expense increased by $80 million, or 13%, during the year ended December 31, 2025, as compared to the year ended December 31, 2024, primarily due to increase in station mix and rate inflation, partially offset by 5% fewer departures.

Previous wording

Maintenance, Materials and Repairs. Maintenance, materials and repair expense increased by $30 million, or 17%, during the year ended December 31, 2024, as compared to the year ended December 31, 2023. This increase was primarily due to a 16% increase in average aircraft in service, which resulted in higher aircraft repair and maintenance costs, partially offset by lower contract labor.

Current wording

Maintenance, Materials and Repairs. Maintenance, materials and repair expense remained consistent during the year ended December 31, 2025, as compared to the year ended December 31, 2024. This was primarily due to the

Previous wording

Sales and Marketing. Sales and marketing expense increased by $14 million, or 9%, during the year ended December 31, 2024, as compared to the year ended December 31, 2023, primarily due to increases in customer reservation system fees and credit card fees, as a result of increased bookings year over year. The following table presents our distribution channel mix:

Current wording

Sales and Marketing. Sales and marketing expense decreased by $19 million, or 11%, during the year ended December 31, 2025, as compared to the year ended December 31, 2024, primarily due to decreases in third-party distribution channel fees, call center operation fees and credit card fees. The following table presents our distribution channel mix:

Previous wording

Depreciation and Amortization. Depreciation and amortization expense increased by $22 million, or 44%, during the year ended December 31, 2024, as compared to the year ended December 31, 2023, primarily due to an increase in capitalized maintenance depreciation due to our growing fleet.

Current wording

Depreciation and Amortization. Depreciation and amortization expense increased by $19 million, or 26%, during the year ended December 31, 2025, as compared to the year ended December 31, 2024, primarily due to an increase in capitalized maintenance depreciation driven by our growing fleet.

Previous wording

Other Operating. Other operating resulted in a net gain of $49 million during the year ended December 31, 2024, compared to an expense of $140 million during the year ended December 31, 2023. This movement was primarily driven by the increase in sale-leaseback gains, as a result of 23 aircraft inductions subject to sale-leaseback transactions during the year ended December 31, 2024, compared to 11 aircraft inductions subject to sale-leaseback transactions in the corresponding prior year period, as well as a legal settlement gain of $40 million during the year ended December 31, 2024.

Current wording

Other Operating. Other operating resulted in an expense of $4 million during the year ended December 31, 2025, compared to a net gain of $49 million during the year ended December 31, 2024. This movement was primarily driven by a legal settlement gain of $40 million during the year ended December 31, 2024, as well as increases to travel, taxes, insurance, and IT costs, partially offset by the increase in sale-leaseback gains compared to the corresponding prior year period.

Previous wording

Other Income (Expense). Other income decreased by $7 million, or 20%, during the year ended December 31, 2024, as compared to the year ended December 31, 2023. The decrease was primarily due to lower interest income from lower balances in interest-bearing cash accounts and the increase in interest expense, net of capitalized interest.

Current wording

Other Income (Expense). Other income decreased by $13 million, or 46%, during the year ended December 31, 2025, as compared to the year ended December 31, 2024. The decrease was primarily due to increased interest expense, driven by higher principal balances on our debt and decreased interest income from lower interest-bearing cash accounts, partially offset by greater capitalized interest.

Previous wording

Income Taxes. Our effective tax rate for the year ended December 31, 2024 was an expense of 1.2%, compared to an expense of 134.4% for the year ended December 31, 2023, on pre-tax income for both periods. The primary difference between the effective tax rate and the federal statutory rate for the year ended December 31, 2024 was related to a decrease in our valuation allowance relating to federal and state net operating losses (“NOLs”).

Current wording

Income Taxes. Our effective tax rate for the year ended December 31, 2025 was an expense of 2.2%, compared to an expense of 1.2% for the year ended December 31, 2024, on pre-tax loss and income, respectively. The primary difference between the effective tax rate and the federal statutory rate for the year ended December 31, 2025 was related to an increase in our valuation allowance relating to federal and state net operating losses (“NOLs”).

Previous wording

(c)We reached a legal settlement with a former lessor for breach of contract for a total of $40 million (please refer to “Notes to Consolidated Financial Statements — 12. Commitments and Contingencies” for additional information). $38 million of the settlement represents a one-time reimbursement of damages incurred and $2 million relates to the reimbursement of previously recorded legal expenses.

Current wording

(c)We reached a legal settlement with a former lessor for breach of contract for a total of $40 million (please refer to “Notes to Consolidated Financial Statements — 11. Commitments and Contingencies” for additional information). $38 million of the settlement represents a one-time reimbursement of damages incurred and $2 million relates to the reimbursement of previously recorded legal expenses.

Previous wording

(f)Adjusted CASM is included as supplemental disclosure because we believe it is a useful metric to properly compare our cost management and performance to other peers, as derivations of Adjusted CASM are well-recognized performance measurements in the airline industry that are frequently used by our management, as well as by investors, securities analysts and other interested parties in comparing the operating performance of companies in the airline industry. Additionally, we believe this metric is useful because it removes certain items that may not be indicative of base operating performance or future results. Adjusted CASM is not determined in accordance with GAAP, may not be comparable across all carriers and should not be considered in isolation or as a substitute for performance measures calculated in accordance with GAAP.

Current wording

(d)Adjusted CASM is included as supplemental disclosure because we believe it is a useful metric to properly compare our cost management and performance to other peers, as derivations of Adjusted CASM are well-recognized performance measurements in the airline industry that are frequently used by our management, as well as by investors, securities analysts and other interested parties in comparing the operating performance of companies in the airline industry. Additionally, we believe this metric is useful because it removes certain items that may not be indicative of base operating performance or future results. Adjusted CASM is not determined in accordance with GAAP, may not be comparable across all carriers and should not be considered in isolation or as a substitute for performance measures calculated in accordance with GAAP.

Previous wording

(g)In September 2024, we reduced the capacity of the PDP Financing Facility from $365 million to $135 million. The downsize of the facility resulted in a one-time write-off of $1 million in unamortized deferred financing costs. This amount is a component of interest expense within our consolidated statements of operations.

Current wording

(e)In September 2024, we reduced the capacity of the pre-delivery deposit payments (“PDPs”) Financing Facility from $365 million to $135 million. The downsize of the facility resulted in a one-time write-off of $1 million in unamortized deferred financing costs. This amount is a component of interest expense within our consolidated statements of operations.

Previous wording

(h)Adjusted CASM including net interest and CASM including net interest are included as supplemental disclosures because we believe they are useful metrics to properly compare our cost management and performance to other peers that may have different capital structures and financing strategies, particularly as it relates to financing primary operating assets such as aircraft and engines. Additionally, we believe these metrics are useful because they remove certain items that may not be indicative of base operating performance or future results. Adjusted CASM including net interest and CASM including net interest are not determined in accordance with GAAP, may not be comparable across all carriers and should not be considered in isolation or as a substitute for performance measures calculated in accordance with GAAP.

Current wording

(f)Adjusted CASM including net interest and CASM including net interest are included as supplemental disclosures because we believe they are useful metrics to properly compare our cost management and performance to other peers that may have different capital structures and financing strategies, particularly as it relates to financing primary operating assets such as aircraft and engines. Additionally, we believe these metrics are useful because they remove certain items that may not be indicative of base operating performance or future results. Adjusted CASM including net interest and CASM including net interest are not determined in accordance with GAAP, may not be comparable across all carriers and should not be considered in isolation or as a substitute for performance measures calculated in accordance with GAAP.

Previous wording

Adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA have limitations as analytical tools. Some of the limitations applicable to these measures include: adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA do not reflect the impact of certain cash charges resulting from matters we consider not to be indicative of our ongoing operations; adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA do not reflect our cash expenditures, or future requirements, for capital expenditures or contractual commitments; EBITDA and adjusted EBITDA do not reflect changes in, or cash requirements for, our working capital needs; EBITDA, and adjusted EBITDA do not reflect the interest expense, or the cash requirements necessary to service interest or principal payments, on our indebtedness or possible cash requirements related to our warrants; although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and EBITDA and adjusted EBITDA do not reflect any cash requirements for such replacements; and other companies in our industry may calculate adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA differently than we do, limiting their usefulness as comparative measures. Because of these limitations, adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA should not be considered in isolation from or as a substitute for performance measures calculated in accordance with GAAP. In addition, because derivations of adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA are not determined in accordance with GAAP, such measures are susceptible to varying calculations and not all companies calculate the measures in the same manner. As a result, derivations of pre-tax income (loss), net income (loss) and EBITDA, including adjusted pre-tax income (loss), adjusted net income (loss) and adjusted EBITDA, as presented may not be directly comparable to similarly titled measures presented by other companies.

Current wording

Adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA have limitations as analytical tools. Some of the limitations applicable to these measures include: adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA do not reflect the impact of certain cash charges resulting from matters we consider not to be indicative of our ongoing operations; adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA do not reflect our cash expenditures, or future requirements, for capital expenditures or contractual commitments; EBITDA and adjusted EBITDA do not reflect changes in, or cash requirements for, our working capital needs; EBITDA, and adjusted EBITDA do not reflect the interest expense, or the cash requirements necessary to service interest or principal payments, on our indebtedness; although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and EBITDA and adjusted EBITDA do not reflect any cash requirements for such replacements; and other companies in our industry may calculate adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA differently than we do, limiting their usefulness as comparative measures. Because of these limitations, adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA should not be considered in isolation from or as a substitute for performance measures calculated in accordance with GAAP. In addition, because derivations of adjusted pre-tax income (loss), adjusted net income (loss), EBITDA and adjusted EBITDA are not determined in accordance with GAAP, such measures are susceptible to varying calculations and not all companies calculate the measures in the same manner. As a result, derivations of pre-tax income (loss), net income (loss) and EBITDA, including adjusted pre-tax income (loss), adjusted net income (loss) and adjusted EBITDA, as presented may not be directly comparable to similarly titled measures presented by other companies.

Previous wording

(b)During the years ended December 31, 2024 and 2023, we recorded $5 million and $37 million non-cash valuation allowances, respectively, against our U.S. federal and state NOL deferred tax assets, which largely do not expire, mainly as a result of being in a three-year cumulative pre-tax loss position, which has no impact on cash taxes and is not reflective of our effective tax rate for deductible NOLs generated or actual cash tax obligations created. Please refer to “Notes to Consolidated Financial Statements — 15. Income Taxes” for additional information.

Current wording

(b)During the year ended December 31, 2024, we recorded a $5 million non-cash valuation allowance against our U.S. federal and state NOL deferred tax assets, which largely do not expire, mainly as a result of being in a three-year cumulative pre-tax loss position, which has no impact on cash taxes and is not reflective of our effective tax rate for deductible NOLs generated or actual cash tax obligations created. Please refer to “Notes to Consolidated Financial Statements — 13. Income Taxes” for additional information.

Previous wording

(c)Stage Length Adjusted (SLA) to 1,000 miles: Adjusted CASM (excluding fuel) * Square root (stage length / 1,000).

Current wording

(c)Stage-Length Adjusted (“SLA”) to 1,000 miles: Applicable Operating Statistic * Square root (stage length / 1,000).

Previous wording

As of December 31, 2024, we had $935 million of total available liquidity, consisting of $730 million in unrestricted cash and cash equivalents and $205 million in total undrawn capacity on our Revolving Loan Facility. We had $502 million of total debt, net, of which $261 million was short-term and consisted primarily of amounts outstanding under our Pre-delivery Credit Facilities. Our total debt, net was comprised of $329 million outstanding under our PDP Financing Facility, $100 million outstanding under our pre-purchased miles facility with Barclays Bank Delaware (“Barclays”), $66 million in 10-year, low-interest loans (collectively, the “PSP Promissory Notes”) from the U.S. Department of the Treasury (the “Treasury”) and $12 million in secured indebtedness for our headquarters building, partially offset by $5 million in deferred debt acquisition costs.

Current wording

As of December 31, 2025, we had $874 million of total available liquidity, consisting of $654 million in unrestricted cash and cash equivalents and $220 million from the undrawn Revolving Loan Facility. We had $614 million of total debt, net, of which $301 million was short-term and consisted primarily of amounts outstanding under our Pre-delivery Credit Facilities. Our total debt, net was comprised of $348 million outstanding under our PDP Financing Facility, $105 million of 2025-1 EETCs, $101 million outstanding under our pre-purchased miles facility with Barclays Bank Delaware (“Barclays”), and $66 million in 10-year loans (collectively, the “PSP Promissory Notes”) from the U.S. Department of the Treasury (the “Treasury”), partially offset by $6 million in deferred debt acquisition costs.

Previous wording

We expect to meet our cash requirements for the next twelve months through use of our available cash and cash equivalents, our Pre-delivery Credit Facilities, and cash flows from operating activities. We expect to meet our long-term cash requirements with cash flows from operating and financing activities, including, but not limited to, potential future borrowings under the Pre-delivery Credit Facilities, our undrawn Revolving Loan Facility and/or potential issuances of debt or equity. The Revolving Loan Facility also permits us to enter into additional indebtedness secured by our loyalty program and brand-related assets, to the extent such indebtedness is pari passu to that of the Revolving Loan Facility. Our primary uses of cash are for working capital, aircraft PDPs, debt repayments and capital expenditures.

Current wording

We expect to meet our cash requirements for the next twelve months through use of our available cash and cash equivalents, our Pre-delivery Credit Facilities, and cash flows from operating activities. We expect to meet our long-term cash requirements with cash flows from operating and financing activities, including, but not limited to, potential future borrowings under the Pre-delivery Credit Facilities, our undrawn Revolving Loan Facility and/or potential issuances of debt or equity. The Revolving Loan Facility also permits us to enter into additional indebtedness secured by our loyalty program and brand-related assets, to the extent such indebtedness is pari passu with the Revolving Loan Facility. Our primary uses of cash are for working capital, aircraft PDPs, debt repayments and capital expenditures.

Previous wording

Our single largest capital commitment relates to the acquisition of aircraft. As of December 31, 2024, we operated all of our 159 aircraft under operating leases. PDPs relating to future deliveries under our agreement with Airbus are required at various times prior to each aircraft’s delivery date. As of December 31, 2024, our Pre-delivery Credit Facilities, which allow us to draw up to an aggregate of $478 million, had $329 million outstanding. As of December 31, 2024, we had $404 million of PDPs held by Airbus, which have been partially financed by our Pre-delivery Credit Facilities.

Current wording

Airbus are required at various times prior to each aircraft’s delivery date. As of December 31, 2025, our Pre-delivery Credit Facilities, which allow us to draw up to an aggregate of $391 million, had $348 million outstanding. As of December 31, 2025, we had $428 million of PDPs held by Airbus, which have been partially financed by our Pre-delivery Credit Facilities.

Previous wording

As of December 31, 2024, we had a firm obligation to purchase 187 A320neo family aircraft and 11 additional spare engines to be delivered by 2031. Of our aircraft commitments, 29 had committed operating leases for deliveries occurring between 2025 and 2026. We intend to evaluate financing options for the remaining aircraft.

Current wording

As of December 31, 2025, we had a firm obligation to purchase 168 A320neo family aircraft and 21 additional spare engines to be delivered by 2031. Of our aircraft commitments, 20 had committed operating leases for deliveries occurring between 2026 and 2027. We intend to evaluate financing options for the remaining aircraft.

Previous wording

(a)Includes principal commitments only associated with our Pre-delivery Credit Facilities with borrowings as of December 31, 2024, our affinity card unsecured debt due through 2029, our building notes through September 2031 and the PSP Promissory Notes through 2031. See “Notes to Consolidated Financial Statements — 8. Debt”.

Current wording

(a)Includes principal commitments only associated with our Pre-delivery Credit Facilities with borrowings as of December 31, 2025, our affinity card unsecured debt due through 2029,the PSP Promissory Notes through 2031, and our class A-1 enhanced equipment certificate through 2032. See “Notes to Consolidated Financial Statements — 7. Debt.”

Previous wording

(c)Represents gross cash payments related to our operating fixed lease obligations that are not subject to discount as compared to the obligations measured on our consolidated balance sheets. See “Notes to Consolidated Financial Statements — 9. Operating Leases”.

Current wording

(c)Represents gross cash payments related to our operating fixed lease obligations that are not subject to discount as compared to the obligations measured on our consolidated balance sheets. See “Notes to Consolidated Financial Statements — 8. Operating Leases.”

Previous wording

(d)Represents purchase commitments for aircraft and engines. See “Notes to Consolidated Financial Statements — 12. Commitments and Contingencies”.

Current wording

(d)Represents purchase commitments for aircraft and engines. See “Notes to Consolidated Financial Statements — 11. Commitments and Contingencies.”

Previous wording

During the year ended December 31, 2023, net cash used in operating activities totaled $261 million, which was driven by an $11 million net loss, $211 million of outflows from changes in operating assets and liabilities and non-cash adjustments totaling $39 million.

Current wording

During the year ended December 31, 2025, net cash used in operating activities totaled $525 million, which was driven by $202 million of outflows from changes in operating assets and liabilities, non-cash adjustments of $186 million and $137 million of net loss.

Previous wording

The $211 million of outflows from changes in operating assets and liabilities included:

Current wording

The $202 million of outflows from changes in operating assets and liabilities included:

Previous wording

•$163 million in increases in other long-term assets driven by increases in capitalized maintenance, prepaid maintenance, capitalized interest and forgivable loans, partially offset by a decreased deferred tax asset;

Current wording

•$257 million in increases in other long-term assets primarily driven by increases in capitalized maintenance and prepaid maintenance;