CA 8443 then AA 1366 at O'Hare
Anchorage → Chicago → Denver
Timetable, Chicago time
16:59CA 8443 from Anchorage at the gate
11:54AA 1366 to Denver leaves the gate
18 h 55 apart on the timetable, overnight
AA 1366 leaves 18 h 55 after CA 8443 arrives on the timetable: more than half a day, so not a connection we count.