WN 191 then UA 3917 at San Francisco
St Louis → San Francisco → Las Vegas
Timetable, San Francisco time
12:25WN 191 from St Louis at the gate
16:45UA 3917 to Las Vegas leaves the gate
4 h 20 apart on the timetable
Today
From the airport’s board at 13:33 San Francisco time
12:30WN 191 reached the gate5 min late
19:09UA 3917 expected to leave the gate2 h 24 late
6 h 39 between the gates, on these times
The last days
WN 191 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.