K4 551 then K4 538 at O'Hare
Anchorage → Chicago → Seoul
Timetable, Chicago time
16:28K4 551 from Anchorage at the gate
15:00K4 538 to Seoul leaves the gate
22 h 32 apart on the timetable, overnight
K4 538 leaves 22 h 32 after K4 551 arrives on the timetable: more than half a day, so not a connection we count.