WN 3370 then UA 3917 at San Francisco
Dallas → San Francisco → Las Vegas
Timetable, San Francisco time
09:30WN 3370 from Dallas at the gate
16:45UA 3917 to Las Vegas leaves the gate
7 h 15 apart on the timetable
The last days
WN 3370 and UA 3917 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.