AV 6985 then UA 488 at San Francisco
Vancouver → San Francisco → Nashville
Timetable, San Francisco time
16:06AV 6985 from Vancouver at the gate
12:40UA 488 to Nashville leaves the gatealso VA 8170
20 h 34 apart on the timetable, overnight
UA 488 leaves 20 h 34 after AV 6985 arrives on the timetable: more than half a day, so not a connection we count.