Originally Posted by
Azulcactus
Once you board your original flight, the system should be smart enough to cancel your backup flight immediately so it no longer is a sold seat and therefore is released. That was my point. Now whether the systems are in fact smart enough or not is a whole different story entirely.

+1. It's just a few lines of code, there's no excuse for this except for poor/lazy programmers. But of course anything with AA's IT systems is a big deal.