AV 2183 then UA 1147 at San Francisco
Vancouver → San Francisco → Chicago O'Hare
Timetable, San Francisco time
15:27AV 2183 from Vancouver at the gate
15:20UA 1147 to Chicago O'Hare leaves the gatealso AC 4185, CA 7326, VA 8104, NZ 9313
23 h 53 apart on the timetable, overnight
UA 1147 leaves 23 h 53 after AV 2183 arrives on the timetable: more than half a day, so not a connection we count.