AA 3131 then K4 538 at O'Hare
Minneapolis → Chicago → Seoul
Timetable, Chicago time
15:55AA 3131 from Minneapolis at the gate
15:00K4 538 to Seoul leaves the gate
23 h 05 apart on the timetable, overnight
K4 538 leaves 23 h 05 after AA 3131 arrives on the timetable: more than half a day, so not a connection we count.