UA 4743 then DL 1690 at Salt Lake City
Denver → Salt Lake City → Las Vegas
Timetable, Salt Lake City time
09:47UA 4743 from Denver at the gate
19:54DL 1690 to Las Vegas leaves the gate
10 h 07 apart on the timetable
The last days
UA 4743 and DL 1690 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.