AA 478 then WN 4146 at Phoenix
Philadelphia → Phoenix → Chicago Midway
Timetable, Phoenix time
13:05AA 478 from Philadelphia at the gate
14:15WN 4146 to Chicago Midway leaves the gate
1 h 10 apart on the timetable
The last days
AA 478 and WN 4146 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.