Frontier Group Holdings, Inc. announced that on June 9, 2026, Andrew Broderick announced his intention to resign from the Board of Directors of Frontier Group Holdings, Inc., effective June 15, 2026. Mr. Broderick's departure as a director of the Company was not the result of any disagreement with the Company on any matter relating to the Company's operations, policies or practices. On June 9, 2026, the Board appointed Barron Steele to serve as a Class II director, effective as of June 15, 2026, to serve for an initial term expiring at the Company's 2029 annual meeting of stockholders and until his successor has been elected and qualified or until his earlier death, resignation or removal.

The Board has appointed Mr. Steele to its Finance Committee and Safety & Security Committee, effective as of June 15, 2026. Mr. Steele was appointed to fill the vacancy on the Board resulting from the resignation of Mr. Broderick. Mr. Steele, age 37, has served as a Vice President at Indigo Partners LLC, a private equity firm focused on the aviation sector, since 2019.

Mr. Steele serves on the Board of Directors of Andean Aircraft Management Ltd., and also serves as a board observer for JetSMART Holdings Ltd., CycloKinetics, Inc. and APiJET, Inc. Prior to joining Indigo Partners, Mr. Steele served as Chief of Staff to the Chief Executive Officer of Frontera Energy Corporation, from 2017 to 2018, where he also served as a board observer and member of the Project Investment Committee. Prior to Frontera Energy, Mr. Steele served as an Investment Banking Analyst at Acquest Advisors LLC from 2014 to 2017, and as an Analyst at Caddo Minerals, Inc. from 2013 to 2014. Mr. Steele received his M.S. in Finance from the McCombs School of Business at The University of Texas at Austin and his B.A. in Spanish from California Lutheran University.