UA 779 then WN 1533 at Denver
Austin → Denver → Salt Lake City
Timetable, Denver time
12:10UA 779 from Austin at the gate
16:15WN 1533 to Salt Lake City leaves the gate
4 h 05 apart on the timetable
The last days
UA 779 and WN 1533 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.