CA 8443 then UA 4393 at O'Hare
Anchorage → Chicago → Tulsa
Timetable, Chicago time
16:59CA 8443 from Anchorage at the gate
12:45UA 4393 to Tulsa leaves the gate
19 h 46 apart on the timetable, overnight
UA 4393 leaves 19 h 46 after CA 8443 arrives on the timetable: more than half a day, so not a connection we count.