AV 6975 then UA 597 at San Francisco
Vancouver → San Francisco → Bozeman
Timetable, San Francisco time
16:06AV 6975 from Vancouver at the gate
12:00UA 597 to Bozeman leaves the gate
19 h 54 apart on the timetable, overnight
UA 597 leaves 19 h 54 after AV 6975 arrives on the timetable: more than half a day, so not a connection we count.