AA 478 then AA 669 at Phoenix
Philadelphia → Phoenix → Newark
Timetable, Phoenix time
13:05AA 478 from Philadelphia at the gate
23:09AA 669 to Newark leaves the gate
10 h 04 apart on the timetable
The last days
AA 478 and AA 669 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.