AC 1048 then UA 4772 at O'Hare
Vancouver → Chicago → Columbia Regional
Timetable, Chicago time
14:37AC 1048 from Vancouver at the gate
12:45UA 4772 to Columbia Regional leaves the gate
22 h 08 apart on the timetable, overnight
UA 4772 leaves 22 h 08 after AC 1048 arrives on the timetable: more than half a day, so not a connection we count.