AA 2528 then AA 513 at Boston
Charlotte → Boston → Washington National
Timetable, Boston time
09:23AA 2528 from Charlotte at the gate
10:19AA 513 to Washington National leaves the gate
56 min apart on the timetable
The last days
AA 2528 and AA 513 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.