AA 2015 then AA 1970 at Philadelphia
Charlotte → Philadelphia → Jacksonville
Timetable, Philadelphia time
14:55AA 2015 from Charlotte at the gate
17:55AA 1970 to Jacksonville leaves the gate
3 h apart on the timetable
The last days
AA 2015 and AA 1970 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.