YES!! you cancel a flight with Frontier, also get a full refund by canceling within 24 hours of booking and at least two days before departure by calling (+1 833 816 0098). Nonrefundable tickets can be changed or canceled with no fee, and you will receive a travel credit. https://central.xero.com/s/question/0D58V000094a4GsSAI/can-you-cancel-a-flight-with-frontier-within-24-hours