To cancel a Frontier Airlines flight using the app, open the Frontier app and sign in. Tap “My Trips”, find the reservation you want to cancel, and then choose the “Cancel” option. Follow the steps on screen to complete the cancellation. If you cancel within 24 hours of booking, you may be eligible for a full refund; after that most fares get travel credits instead of money back and fees can apply. If you don’t see the cancel option or need help, you can also cancel on the Frontier website or contact customer service for assistance.
