WN 3370 then Y4 2735 at San Francisco
Dallas → San Francisco → Las Vegas
Timetable, San Francisco time
09:30WN 3370 from Dallas at the gate
11:06Y4 2735 to Las Vegas leaves the gatealso F9 4158
1 h 36 apart on the timetable
The last days
WN 3370 and Y4 2735 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.