AA 9975 then DL 8847 at Philadelphia
Harrisburg → Philadelphia → Charlotte
Timetable, Philadelphia time
10:20AA 9975 from Harrisburg at the gate
15:55DL 8847 to Charlotte leaves the gate
5 h 35 apart on the timetable
The last days
AA 9975 and DL 8847 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.