UA 862 then VA 8562 at San Francisco
Hong Kong → San Francisco → Las Vegas
Timetable, San Francisco time
07:05UA 862 from Hong Kong at the gate
21:10VA 8562 to Las Vegas leaves the gate
14 h 05 apart on the timetable
VA 8562 leaves 14 h 05 after UA 862 arrives on the timetable: more than half a day, so not a connection we count.