AV 6975 then UA 1334 at San Francisco
Vancouver → San Francisco → Toronto
Timetable, San Francisco time
10:32AV 6975 from Vancouver at the gate
23:29UA 1334 to Toronto leaves the gatealso AC 4067
12 h 57 apart on the timetable
UA 1334 leaves 12 h 57 after AV 6975 arrives on the timetable: more than half a day, so not a connection we count.