Originally Posted by
MDFFlyer
I was wondering if this meant that I could arrive at the airport at 3:30PM (45 min. before departure as per usual) or would I need to arrive at 45min. before the original planned departure?
Those status readouts are not authoritative. They could fix the mechanical, make up time en route, swap aircraft, etc. -- all kinds of possibilities -- that put your flight back on schedule, and not send another update. If you slip your arrival time on the advice of the e-notifier, you risk missing your flight (happened to me on UA).