AA 451 then AA 798 at Phoenix
Cleveland → Phoenix → San Diego
Timetable, Phoenix time
09:33AA 451 from Cleveland at the gate
13:26AA 798 to San Diego leaves the gate
3 h 53 apart on the timetable
The last days
AA 451 and AA 798 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.