AA 1391 then WN 2277 at Phoenix
Philadelphia → Phoenix → Las Vegas
Timetable, Phoenix time
10:29AA 1391 from Philadelphia at the gate
11:05WN 2277 to Las Vegas leaves the gate
36 min apart on the timetable
The last days
AA 1391 and WN 2277 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.