UA 337 then WN 2115 at Denver
Phoenix Sky Harbor → Denver → Salt Lake City
Timetable, Denver time
08:10UA 337 from Phoenix Sky Harbor at the gate
08:50WN 2115 to Salt Lake City leaves the gate
40 min apart on the timetable
The last days
UA 337 and WN 2115 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.