WN 1772 then OO 377 at San Francisco
Denver → San Francisco → Salt Lake City
Timetable, San Francisco time
13:25WN 1772 from Denver at the gate
19:49OO 377 to Salt Lake City leaves the gate
6 h 24 apart on the timetable
The last days
WN 1772 and OO 377 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.