Originally Posted by
lincolnjkc
That is the official line, however once a flight is delayed an on time departure is unlikely -- but I position myself so that I am at the airport and can make it to the gate with +/-30 minutes notice (e.g. at least enough time between the "we're boarding your flight" notification and departure. Practically this usually means a club near the departure gate if not the departure gate itself.
Yeah, I have never seen a flight move back earlier a lot. Off the top of my head, maybe I have seen a few times a flight delayed by 1+ hour recover 10-20 minutes? Maybe once I saw a flight recover top to 30 minutes at a hub when UA procured a different plane. But I was one burned... by Amtrak. Scarred forever by returning to an empty platform after having a nice, relaxing bite at the station Subway.