Originally Posted by
Alderma9
if you're within 24hrs call them back and ask for it now. They should be able to refund the difference or re-book for less without any fees. Anyone can change any bookings for free within 24 hrs. Unless there is an exception for being within 24 hrs of departure as well.
There is an exception, usually 7 days from departure (which I think is a DOT requirement) though AA recently made it 2 days I believe. That said if the OP bought a full F ticket they can call and cancel anytime - its kind of the benefit of a full F ticket
.