Originally Posted by
HIDDY
I was always under the impression it was when you left/reached the gate and as usual arrival times were always overestimated to allow leeway for delays.
I think it used to be Wheels Up / Touch Down but I’m not sure if that’s now changed. You are right about Arrival & Departure times, rule of thumb is that pushback usually occurs around Departure time or up to 30 mins later for and OnTime arrival. Most planes work their schedule around a 30min delayed pushback...inevitable it seems they're right 80% of the time