AV 2183 then UA 755 at San Francisco
Vancouver → San Francisco → Washington
Timetable, San Francisco time
15:27AV 2183 from Vancouver at the gate
12:45UA 755 to Washington leaves the gatealso CA 7313, NZ 9162
21 h 18 apart on the timetable, overnight
UA 755 leaves 21 h 18 after AV 2183 arrives on the timetable: more than half a day, so not a connection we count.