AA 2991 then AA 2768 at Charlotte
Newark → Charlotte → Miami
Timetable, Charlotte time
08:05AA 2991 from Newark at the gate
11:00AA 2768 to Miami leaves the gate
2 h 55 apart on the timetable
The last days
AA 2991 and AA 2768 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.