AV 6985 then UA 3900 at San Francisco
Vancouver → San Francisco → Rio De Janeiro
Timetable, San Francisco time
16:06AV 6985 from Vancouver at the gate
16:00UA 3900 to Rio De Janeiro leaves the gate
23 h 54 apart on the timetable, overnight
UA 3900 leaves 23 h 54 after AV 6985 arrives on the timetable: more than half a day, so not a connection we count.