AA 5414 then AA 2722 at Philadelphia
Detroit → Philadelphia → San Diego
Timetable, Philadelphia time
07:49AA 5414 from Detroit at the gate
08:26AA 2722 to San Diego leaves the gate
37 min apart on the timetable
The last days
AA 5414 and AA 2722 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.