AA 1439 then AA 3135 at Charlotte
Detroit → Charlotte → Toronto
Timetable, Charlotte time
09:14AA 1439 from Detroit at the gate
13:01AA 3135 to Toronto leaves the gate
3 h 47 apart on the timetable
The last days
AA 1439 and AA 3135 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.