AA 1045 then DL 1005 at Atlanta
Miami → Atlanta → Detroit
Timetable, Atlanta time
00:45AA 1045 from Miami at the gate
08:30DL 1005 to Detroit leaves the gate
7 h 45 apart on the timetable
The last days
AA 1045 and DL 1005 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.