Originally Posted by
azzurro
Interesting thought... cancelling further ahead of time will give a non-elite (possibly elites also) a TOD opportunity, where not boarding will give an elite a better chance of a battlefield upgrade. I know I am not inconvenienced when being given a BP as the doors close. I would much rather be in F instead of Y and many times the TOD's take the last seat...
Ooh, good point. I suggest waiting until close to departure to cancel, too, because there's the chance of a delay (which could result in a refund), and of course then your F seat is almost guaranteed to go to someone on the waitlist instead of a TOD.