AA 1337 then AA 5447 at Charlotte
Miami → Charlotte → Washington
Timetable, Charlotte time
12:03AA 1337 from Miami at the gate
15:12AA 5447 to Washington leaves the gate
3 h 09 apart on the timetable
The last days
AA 1337 and AA 5447 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.