Remember that AA
does pad their schedules a bit. I flew ATL
on January 1st, which was a beautiful day for flying. The plane was into the gate 35 minutes early. Granted, we pushed back 5 minutes early at ATL
, there was no back up for takeoff, and we took off on 10R, which saves about 10 minutes on taxiing, but that still leaves 20 minutes of padding.
I would still check www.fly.faa.gov to see how far behind ORD
Also, it depends on the wind direction and speed as to how far behind ORD
gets. Back in March, I had a flight to LGA
that was 45 minutes late departing, on a clear day. Because of winds gusting to 40 mph from the southwest, ORD
was set up for departures on 27L, 27R, and 22L, while arrivals were coming in on 22R and 22L. With 22L doing double duty and the Northeast having gotten 6 to 10 inches of snow, ORD
was not doing well.