AA 1638 then WN 8543 at Denver
Phoenix Sky Harbor → Denver → Las Vegas
Timetable, Denver time
21:59AA 1638 from Phoenix Sky Harbor at the gate
07:05WN 8543 to Las Vegas leaves the gate
9 h 06 apart on the timetable, overnight
The last days
AA 1638 and WN 8543 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.