UA 862 then UA 8135 at San Francisco
Hong Kong → San Francisco → Denver
Timetable, San Francisco time
07:05UA 862 from Hong Kong at the gate
18:00UA 8135 to Denver leaves the gate
10 h 55 apart on the timetable
The last days
UA 862 and UA 8135 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.