Fourth quarter & FY2023 Financial Update

2 Disclaimer This presentation (including the accompanying oral presentation) is being delivered on behalf of Frontier Group Holdings, Inc. ("Frontier") ("we", "our", "us", or the "Company"). Before you invest, you should read the documents that the Company has filed with the Securities and Exchange Commission ("SEC") for more complete information about the Company. You may get these documents for free by visiting the SEC's website at www.sec.gov. This presentation is for informational purposes only and shall not constitute an offer to sell or the solicitation of an offer to buy any securities and may not be relied upon in connection with the purchase or sale of any security. Non-GAAP Financial Measures In addition to financial information prepared in accordance with generally accepted accounting principles in the United States ("GAAP"), this presentation includes certain non-GAAP financial measures. We believe these non-GAAP financial measures are useful supplemental indicators of our operating performance. We believe the non-GAAP numbers provided 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 our industry. Reconciliations of such information to the most directly comparable GAAP financial measures are included in the Appendix to these slides. The non-GAAP measures have limitations and may not be comparable across all carriers, and you should not consider them in isolation or as a substitute for our GAAP financial information. Cautionary Sta ment Regarding Forward-Looking Statements and Information Certain statements in this presentation should be considered forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. These forward- looking statements are based on the Company's current expectations and beliefs with respect to certain current and future events and anticipated financial and operating performance. Words such as "expects," "will," "plans," "intends," "anticipates," "indicates," "remains," "believes," "estimates," "forecast," "guidance," "outlook," "goals," "targets" and similar expressions are intended to identify forward-looking statements. Additionally, forward- looking statements include statements that do not relate solely to historical facts, such as statements which identify uncertainties or trends, discuss the possible future effects of current known trends or uncertainties, or which indicate that the future effects of known trends or uncertainties cannot be predicted, guaranteed or assured. All forward-looking statements in this presentation are based upon information available to the Company on the date of this presentation. The Company undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, changed circumstances or otherwise, except as required by applicable law. FRONTIER

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