AA 3124 then AA 5050 at Philadelphia
St Louis → Philadelphia → Atlanta
Timetable, Philadelphia time
09:19AA 3124 from St Louis at the gate
11:30AA 5050 to Atlanta leaves the gate
2 h 11 apart on the timetable
The last days
AA 3124 and AA 5050 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.