Originally Posted by
jsloan
If you can get past TSA, you may be able to get onto the later flight, yes. Also, you may be able to do a same-day confirmed change in the app once your PTY-DEN coupon is lifted (generally, not long after the door closes).
Would I need to get past TSA, or could I just do it at the check in desks? Either way, I do have that WN flight booked with miles, so I can use that BP to get through security and cancel if I need to. But you are saying the fact that the UA flight is actually a day earlier won't preclude me from same-day standby?