We have 2 roundtrip airfares booked for WDW, one in Jan/Feb and one in March. They are "Blue" reservations and said they are free to change/cancel. The first one I booked on 10/31/21 because I read on the Dis that you can cancel airfares on Jetblue just as long as you book by then. I reserved the other yesterday and it still said you can book or cancel. My question, how fare in advance do you have to cancel to get back your money/points? Thank you for any info.