AA 5079 then AA 4800 at Atlanta
Philadelphia → Atlanta → Washington National
Timetable, Atlanta time
10:52AA 5079 from Philadelphia at the gate
17:01AA 4800 to Washington National leaves the gate
6 h 09 apart on the timetable
The last days
AA 5079 and AA 4800 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.