Originally Posted by
jrl767
(2) hope for a schedule change of >60-90 min or a change of operating carrier; this generally allows for either a full refund or a one-time change (individual airline policy may limit the change to travel on the same route/date, but may give some flexibility such as alternate airport or +/- one day)
Good point. But if you accept such a change, are you allowed once again a 24 hour window of undo?