CA 3103 then K4 538 at O'Hare
Anchorage → Chicago → Seoul
Timetable, Chicago time
15:07CA 3103 from Anchorage at the gate
15:00K4 538 to Seoul leaves the gate
23 h 53 apart on the timetable, overnight
K4 538 leaves 23 h 53 after CA 3103 arrives on the timetable: more than half a day, so not a connection we count.