AA 873 then AA 5250 at Atlanta
Chicago O'Hare → Atlanta → Philadelphia
Timetable, Atlanta time
10:23AA 873 from Chicago O'Hare at the gate
12:31AA 5250 to Philadelphia leaves the gate
2 h 08 apart on the timetable
The last days
AA 873 and AA 5250 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.