AA 2407 then WN 2535 at San Francisco
Philadelphia → San Francisco → Phoenix
Timetable, San Francisco time
11:35AA 2407 from Philadelphia at the gate
13:30WN 2535 to Phoenix leaves the gate
1 h 55 apart on the timetable
The last days
AA 2407 and WN 2535 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.