AA 1975 then AA 5584 at Charlotte
Hartford → Charlotte → Birmingham (Alabama)
Timetable, Charlotte time
10:30AA 1975 from Hartford at the gate
17:19AA 5584 to Birmingham (Alabama) leaves the gate
6 h 49 apart on the timetable
The last days
AA 1975 and AA 5584 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.