UA 2 then QF 3062 at San Francisco
Singapore → San Francisco → Los Angeles
Timetable, San Francisco time
09:15UA 2 from Singapore at the gate
09:47QF 3062 to Los Angeles leaves the gatealso BA 4663, AA 6274
32 min apart on the timetable
The last days
UA 2 and QF 3062 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.