AA 2255 then AA 1236 at Philadelphia
Dallas-Fort Worth → Philadelphia → San Diego
Timetable, Philadelphia time
12:58AA 2255 from Dallas-Fort Worth at the gate
16:29AA 1236 to San Diego leaves the gate
3 h 31 apart on the timetable
The last days
AA 2255 and AA 1236 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.