UA 3770 then VS 1853 at San Francisco
Columbus (Ohio) → San Francisco → Los Angeles
Timetable, San Francisco time
07:00UA 3770 from Columbus (Ohio) at the gate
18:28VS 1853 to Los Angeles leaves the gatealso AF 2239, DL 2793, WS 7521, CI 9009
11 h 28 apart on the timetable
The last days
UA 3770 and VS 1853 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.