AV 6975 then DL 6889 at San Francisco
Vancouver → San Francisco → Calgary
Timetable, San Francisco time
23:01AV 6975 from Vancouver at the gate
17:40DL 6889 to Calgary leaves the gatealso SK 9552
18 h 39 apart on the timetable, overnight
DL 6889 leaves 18 h 39 after AV 6975 arrives on the timetable: more than half a day, so not a connection we count.