AA 1391 then AA 4978 at Phoenix
Philadelphia → Phoenix → Fresno
Timetable, Phoenix time
10:29AA 1391 from Philadelphia at the gate
13:52AA 4978 to Fresno leaves the gate
3 h 23 apart on the timetable
The last days
AA 1391 and AA 4978 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.