AV 2183 then B6 1034 at San Francisco
Vancouver → San Francisco → Boston
Timetable, San Francisco time
15:27AV 2183 from Vancouver at the gate
12:14B6 1034 to Boston leaves the gate
20 h 47 apart on the timetable, overnight
B6 1034 leaves 20 h 47 after AV 2183 arrives on the timetable: more than half a day, so not a connection we count.