AA 2565 then AA 356 at Philadelphia
Charlotte → Philadelphia → Jacksonville
Timetable, Philadelphia time
11:39AA 2565 from Charlotte at the gate
15:36AA 356 to Jacksonville leaves the gate
3 h 57 apart on the timetable
The last days
AA 2565 and AA 356 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.