AA 552 then AA 597 at Atlanta
Dallas-Fort Worth → Atlanta → Philadelphia
Timetable, Atlanta time
16:32AA 552 from Dallas-Fort Worth at the gate
18:56AA 597 to Philadelphia leaves the gate
2 h 24 apart on the timetable
The last days
AA 552 and AA 597 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.