AV 6975 then UA 1114 at San Francisco
Vancouver → San Francisco → Chicago O'Hare
Timetable, San Francisco time
16:06AV 6975 from Vancouver at the gate
14:00UA 1114 to Chicago O'Hare leaves the gatealso AC 5196, CA 7327, VA 8100, NZ 9302
21 h 54 apart on the timetable, overnight
UA 1114 leaves 21 h 54 after AV 6975 arrives on the timetable: more than half a day, so not a connection we count.