AA 1850 then WN 1734 at Phoenix
Philadelphia → Phoenix → Ontario
Timetable, Phoenix time
16:06AA 1850 from Philadelphia at the gate
20:10WN 1734 to Ontario leaves the gate
4 h 04 apart on the timetable
The last days
AA 1850 and WN 1734 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.