AA 9953 then AA 1256 at Philadelphia
Atlanta → Philadelphia → New Orleans
Timetable, Philadelphia time
13:28AA 9953 from Atlanta at the gate
16:22AA 1256 to New Orleans leaves the gate
2 h 54 apart on the timetable
The last days
AA 9953 and AA 1256 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.