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How do I add my FRONTIER Miles number to my existing reservation?
Adding your FRONTIER Miles  number to your existing reservation is as easy as 1-2-3! 1. Retrieve your reservation and manage your booking by logging into My Trip . 2. Select Change Name Details .  Enter your FRONTIE...
How do I get FRONTIER Miles credit for a flight I've already taken?
If a trip was completed within the last 180 days and you would like to earn mileage credit, log into your myFRONTIER account on and access your profile. Under My Loyalty , select Retro Accrual , enter the confirmation code fro...
What is FRONTIER Miles?
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