AA 1311 then WN 1551 at Phoenix
Philadelphia → Phoenix → Las Vegas
Timetable, Phoenix time
22:49AA 1311 from Philadelphia at the gate
07:40WN 1551 to Las Vegas leaves the gate
8 h 51 apart on the timetable, overnight
The last days
AA 1311 and WN 1551 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.