DL 5164 then AA 5001 at O'Hare
Detroit → Chicago → Birmingham (Alabama)
Timetable, Chicago time
07:41DL 5164 from Detroit at the gate
10:30AA 5001 to Birmingham (Alabama) leaves the gate
2 h 49 apart on the timetable
The last days
DL 5164 and AA 5001 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.