AA 2685 then AA 1822 at Philadelphia
Boston → Philadelphia → Charlotte
Timetable, Philadelphia time
13:01AA 2685 from Boston at the gate
13:53AA 1822 to Charlotte leaves the gate
52 min apart on the timetable
The last days
AA 2685 and AA 1822 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.