AV 6975 then UA 1434 at San Francisco
Vancouver → San Francisco → Las Vegas
Timetable, San Francisco time
23:01AV 6975 from Vancouver at the gate
16:50UA 1434 to Las Vegas leaves the gate
17 h 49 apart on the timetable, overnight
UA 1434 leaves 17 h 49 after AV 6975 arrives on the timetable: more than half a day, so not a connection we count.