AA 581 then AA 2991 at Charlotte
Tampa → Charlotte → Washington National
Timetable, Charlotte time
09:53AA 581 from Tampa at the gate
16:47AA 2991 to Washington National leaves the gate
6 h 54 apart on the timetable
The last days
AA 581 and AA 2991 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.