C8 82 then UA 4438 at O'Hare
Anchorage → Chicago → St Louis
Timetable, Chicago time
18:28C8 82 from Anchorage at the gate
10:45UA 4438 to St Louis leaves the gate
16 h 17 apart on the timetable, overnight
UA 4438 leaves 16 h 17 after C8 82 arrives on the timetable: more than half a day, so not a connection we count.