Ran into an expensive lesson with Frontier despite having Platinum Elite status and the Frontier credit card, which includes no change or cancel fees.
After changing a flight to a cheaper fare, the difference in price showed up as something called “Residual Value.” Instead of getting that amount back as a refund or credit, the money was essentially lost.
The key takeaway is that changing a flight to a cheaper one doesn’t return the difference. To keep the value, the better option is to cancel the flight completely, receive the credit, and then rebook the new flight.
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