Management | Frontier Group Holdings, Inc.

Barry L. Biffle has served as a member of our Board of Directors since March 2017, as our Chief Executive Officer since March 2016 and as our President since July 2014. From July 2013 to April 2014, Mr. Biffle served as chief executive officer of VivaColombia, an airline based in Medellín, Colombia. From February 2005 to July 2013, Mr. Biffle served as chief marketing officer of Spirit Airlines, Inc. From 2003 to 2005, Mr. Biffle served as managing director of marketing at US Airways. Mr. Biffle also held other key positions in network planning, sales and marketing while at US Airways. Prior to joining US Airways, Mr. Biffle held several management positions at American Eagle Airlines, a regional airline subsidiary of American Airlines, Inc. from 1995 to 1999. Mr. Biffle holds a B.A. from the University of Alabama.

James G. Dempsey has served as our President since October 2023 and has responsibility for Commercial, Customer Care and Operations Research, Design and Planning functions. Mr. Dempsey previously served as our Executive Vice President and Chief Financial Officer since December 2019 and as our Chief Financial Officer since May 2014. From July 2006 to April 2014, Mr. Dempsey served as treasurer at Ryanair Holdings PLC. From 2003 to 2006, Mr. Dempsey served as head of investor relations at Ryanair. Prior to this, Mr. Dempsey served in various management roles with PricewaterhouseCoopers from 2000 to 2003. Mr. Dempsey holds a Bachelor of Commerce Degree from the University College Dublin and is a fellow of the Institute of Chartered Accountants in Ireland.

Howard M. Diamond has served as our Executive Vice President, Legal and Corporate Affairs since February 2024 and previously as Senior Vice President, General Counsel and Corporate Secretary since July 2014. Mr. Diamond served as vice president, general counsel and corporate secretary of Thales USA, Inc., a diversified aerospace, defense and transportation company, from January 2008 to July 2014. Prior to that, Mr. Diamond served as chief counsel at BAE Systems Land and Armaments, f/k/a United Defense, LP from 2003 to 2008. Mr. Diamond began his legal career as an officer in the U.S. Army JAG Corps from 1994 to 1997, after which he served as a litigation associate from 1997 to 2001 at the law firm of Sherman & Howard. Mr. Diamond holds a B.A. from Wesleyan University and a J.D. from the University of Virginia School of Law.

Alex Clerc became Frontier’s Senior Vice President, Customers in January 2024. In this capacity, he oversees our Airport Customer Service (ACS) and Inflight Teams. Most recently, Alex worked as a Senior Expert with McKinsey & Company in their Transport and Travel Practice. He brings a wealth of experience in the aviation sector, having served as Chief Operating Officer for Interjet Airlines in Mexico, Head of Operations Planning for Spirit Airlines, Chief Operating & Cost Officer for Volotea Airlines in Spain, and a variety of senior roles in Tech Ops and Strategic Planning for Southwest Airlines. Alex began his career in operations with Hilton Hotels Corporation.

Mark C. Mitchell has served as our Senior Vice President and Chief Financial Officer since October 2023. Prior to this, Mr. Mitchell served as our Vice President, Finance and Investor Relations since February 2022 and as our Chief Accounting Officer since September 2015. From February 2007 to September 2015, Mr. Mitchell served in various leadership capacities for Starwood Hotels and Resorts Worldwide, Inc., or SHRW, a hotel and leisure company, including serving as the vice president, accounting (SHRW) from 2013 to 2015 and as the controller for Starwood Vacation Ownership, Inc., the timeshare brand of SHRW, from 2007 to 2015. Prior to this, Mr. Mitchell served in various controllership capacities at Equitable Resources, Inc. and HD Supply, Inc. from 2002 to 2006 and also held various roles at Deloitte LLP from 1995 to 2002, including that of audit manager. Mr. Mitchell is a CPA and holds a B.S. in Accounting from Indiana University and an M.B.A. from the University of Florida.

Robert “Bobby” Schroeter became Frontier’s Senior Vice President, Chief Commercial Officer in March 2024. He is responsible for Frontier’s Commercial Teams, including Pricing & Revenue Management and Network Planning and Marketing. Most recently, Mr. Schroeter was the Senior Vice President, Chief Marketing Officer for Spirit Airlines. He has served in a variety of leadership roles on the Commercial side of their business since 2005. Prior to joining Spirit, he spent time with US Airways as well as America West. Mr. Schroeter holds a Bachelor of Arts Degree in Economics from the University of Virgina.

Steve Schuller has served as the Senior Vice President of Human Resources since February 2024, and previously as Vice President, Human Resources since joining the company in September 2018. Steve brings more than 30 years of human resources expertise, having worked in senior leadership roles for a variety of companies from entrepreneurial start-ups to global corporations in the hospitality, healthcare and retail industries. Prior to joining Frontier, Steve served as the Vice President, Talent & Human Resources for Dallas-based Catapult Health. Steve earned his bachelor’s degree in Business from Cornell University. He and his family reside in the city of Denver.

Trevor J. Stedke has served as our Senior Vice President, Operations since April 2019. Prior to this, he served as vice president, aircraft technical operations for Southwest Airlines from June 2012 until September 2018. Mr. Stedke has served as an Engineering Advisory Board member for Embry-Riddle Aeronautical University since June 2014. Mr. Stedke holds a B.S. in Aviation Engineering/Atmospheric Science from the Ohio State University and an M.S. in Engineering Management from the Christian Brothers University.

Mr. Wetzel has served as our Chief Accounting Officer since February 2022. He was the company’s Corporate Controller since September 2020, after serving as Director, Corporate Accounting and Financial Reporting from March 2019 to September 2020. Prior to joining the Company, Mr. Wetzel served as Vice President, Corporate Accounting at DCT Industrial Trust Inc., an industrial real estate company, from January 2018 until its acquisition by Prologis, Inc. in August 2018. From August 2014 to January 2018, Mr. Wetzel held various accounting and reporting positions at Welltok, Inc, a consumer activation company, The WhiteWave Foods Co., a food and beverage company acquired by Danone S.A. and The Western Union Company, a financial services company. Prior to that Mr. Wetzel held various positions at Takeda Pharmaceutical Company Limited, a multinational pharmaceutical company, from October 2010 to August 2014. Mr. Wetzel began his career at Deloitte and Touche LLP and is a Certified Public Accountant and received a B.A. in Accountancy from DePaul University.