AA 268 then AA 4616 at Detroit
Miami → Detroit → Washington National
Timetable, Detroit time
09:10AA 268 from Miami at the gate
13:10AA 4616 to Washington National leaves the gate
4 h apart on the timetable
The last days
AA 268 and AA 4616 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.