AA 6243 then WN 2277 at Phoenix
Sioux Falls → Phoenix → Las Vegas
Timetable, Phoenix time
10:20AA 6243 from Sioux Falls at the gate
11:05WN 2277 to Las Vegas leaves the gate
45 min apart on the timetable
The last days
AA 6243 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.