You can redeem your voucher when booking your flights on flyfrontier.com or in the Frontier app. At the payment screen, select “Frontier Voucher” and enter your voucher number.
Keep in mind:
- Vouchers are valid for 90 days from the issue date
- They’re one-time use and non-transferable
- The name on the new booking must match the original reservation exactly
- If the voucher doesn’t cover the full amount, you’ll pay the difference
- Vouchers can’t be redeemed for cash