AA 3182 then AA 574 at Charlotte
Hartford → Charlotte → Miami
Timetable, Charlotte time
08:11AA 3182 from Hartford at the gate
11:00AA 574 to Miami leaves the gate
2 h 49 apart on the timetable
The last days
AA 3182 and AA 574 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.