AV 2183 then UA 1020 at San Francisco
Vancouver → San Francisco → Las Vegas
Timetable, San Francisco time
15:27AV 2183 from Vancouver at the gate
10:40UA 1020 to Las Vegas leaves the gatealso AC 5340, VA 8121, NZ 9221
19 h 13 apart on the timetable, overnight
UA 1020 leaves 19 h 13 after AV 2183 arrives on the timetable: more than half a day, so not a connection we count.