AA 4697 then AA 1153 at Atlanta
Washington National → Atlanta → Chicago O'Hare
Timetable, Atlanta time
10:17AA 4697 from Washington National at the gate
12:53AA 1153 to Chicago O'Hare leaves the gate
2 h 36 apart on the timetable
The last days
AA 4697 and AA 1153 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.