CA 8443 then UA 1525 at O'Hare
Anchorage → Chicago → Las Vegas
Timetable, Chicago time
16:59CA 8443 from Anchorage at the gate
15:00UA 1525 to Las Vegas leaves the gate
22 h 01 apart on the timetable, overnight
UA 1525 leaves 22 h 01 after CA 8443 arrives on the timetable: more than half a day, so not a connection we count.