AA 1556 then AA 9783 at Miami
Washington National → Miami → Philadelphia
Timetable, Miami time
16:32AA 1556 from Washington National at the gate
18:50AA 9783 to Philadelphia leaves the gate
2 h 18 apart on the timetable
The last days
AA 1556 and AA 9783 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.