WN 477 then WN 577 at Phoenix
Boise → Phoenix → Las Vegas
Timetable, Phoenix time
10:40WN 477 from Boise at the gate
12:55WN 577 to Las Vegas leaves the gate
2 h 15 apart on the timetable
The last days
WN 477 and WN 577 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.