WN 191 then UA 5895 at San Francisco
St Louis → San Francisco → Phoenix
Timetable, San Francisco time
10:50WN 191 from St Louis at the gate
16:27UA 5895 to Phoenix leaves the gate
5 h 37 apart on the timetable
The last days
WN 191 and UA 5895 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.