UA 371 then VA 8118 at San Francisco
Houston → San Francisco → Las Vegas
Timetable, San Francisco time
19:58UA 371 from Houston at the gatealso EK 6013, NZ 9206
08:35VA 8118 to Las Vegas leaves the gate
12 h 37 apart on the timetable, overnight
VA 8118 leaves 12 h 37 after UA 371 arrives on the timetable: more than half a day, so not a connection we count.