What is the Full Flex plan and how does it work?
Full Flex is the fare option with the highest refund protection at every cancellation window — cash back if you cancel early, credits if you cancel later.
For the exact percentages at each cancellation window, see “What is the Group Trips cancellation and refund policy?” in the Cancellations & Refunds section of the Help Center — Full Flex is the most protected of the three fare types at every stage.
Note: fare types can't be changed after booking, except within the first 7 days of purchase if you haven't used any services yet.