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ACTIVE MILITARY PERSONNEL BAGS Frontier welcomes U.S. military service members onboard. Active U.S. military personnel and their accompanying spouse and children, when the active‑duty member is present and traveling on the same itinerary, and ...
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Last Updated: 02/20/2026
in Change & Cancel Policies
Yes, i f you didn’t take your Frontier flight which experienced a cancellation or significant schedule change or delay (greater than 3 hours for domestic flights, or greater than 6 hours for international flights ), or d...
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If you’ve flown on an eligible Frontier Airlines flight within the last 180 days but didn’t add your FRONTIER Miles account number at booking, don’t worry—you can still earn miles for those flights! Not a FRONTIER Mi...
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Last Updated: 02/20/2026
in My Booking My Trip
For travel within the U.S.: Travelers 18 and older must present a valid, government-issued photo ID that includes: • Full name • Date of birth • Gender • Expiration date • A tamper-resistant feature Accepted forms of ID include: • ...
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Last Updated: 02/20/2026
in Vouchers
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 da...
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Last Updated: 02/20/2026
in Discount Den
Kids Fly Free is a special benefit for Discount Den® members. When you book an eligible flight, one child under 15 can fly for free with every adult Discount Den fare purchase. The child must be on the same reservation as the adult, and the offer ...
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Last Updated: 02/20/2026
in My Booking Fares & Payment
You can access receipts of all of your payments, refunds and credit card charges online on the My Trip page . Enter your last name and confirmation code. From there, scroll to the payment section on your booking page. If you a FRONTIER Miles me...
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Last Updated: 02/20/2026
in Change & Cancel Policies
If you miss your flight by not checking in or boarding on time, your ticket will be marked as a No-Show Cancellation. This means: Check-in must be completed at least 60 minutes before departure Boarding must be completed at least ...
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You can purchase seats and bags during your initial booking—or anytime afterward—on both the FlyFrontier app and FlyFrontier.com. If you’ve already purchased your ticket: Open the FlyFrontier app or go to 'Manage Trip' on FlyFrontier.com ...
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Last Updated: 02/20/2026
in Check-In
Mobile Check-In: Download our free mobile app for iOS and Android to check-in and get your mobile boarding pass with ease. If you have your mobile boarding pass in hand and are not checking a bag, or just have a carry-on, you can skip the ai...