AA 2137 then AA 6486 at O'Hare
Austin → Chicago → Detroit
Timetable, Chicago time
09:00AA 2137 from Austin at the gate
13:34AA 6486 to Detroit leaves the gate
4 h 34 apart on the timetable
Today
From the airport’s board at 16:23 Chicago time
09:05AA 2137 reached the gate5 min late
13:27AA 6486 left the gate7 min early
4 h 22 between the gates
The last days
AA 2137 and AA 6486 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.