Cancel Frontier Flight & Get a Refund visit the Frontier Airlines website and log in to your account. Navigate to the "My Trips" section and select the flight you wish to cancel. Follow the prompts to cancel the flight. Refund eligibility depends on the fare type and timing of the cancellation. Refundable tickets can be reimbursed, while non-refundable tickets may only offer a travel credit. For further assistance, contact Frontier's customer service. Be aware that cancellation fees may apply, and refund processing times can vary.