144 0002016572 XXXXXXXX LIVE 0001670076 Frontier Group Holdings, Inc. 001-40304 4545 AIRPORT WAY DENVER CO 80239 720 374-4550 Group Holdings - Frontier LLC 10% owner Common Stock BofA Securities Inc.

One Bryant Park New York NY 10036

11700000 90090000 229789335 07/09/2026 NASDAQ Common Stock 04/05/2024 Acquired in connection with a distribution from Indigo Frontier Holdings Company, LLC. Indigo Frontier Holdings Company, LLC N 11700000 04/05/2024 See Nature of Acquisition Transaction Y 07/09/2026 By: /s/ Michael Fazio, Vice President, Group Holdings - Frontier LLC