AA 9976 then AA 753 at Philadelphia
Rochester → Philadelphia → Atlanta
Timetable, Philadelphia time
13:19AA 9976 from Rochester at the gate
18:40AA 753 to Atlanta leaves the gate
5 h 21 apart on the timetable
The last days
AA 9976 and AA 753 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.