K4 550 then 7C 1182 at Narita
Chicago → Tokyo → Seoul
Timetable, Tokyo time
11:59K4 550 from Chicago at the gate
10:407C 1182 to Seoul leaves the gate
22 h 41 apart on the timetable, overnight
7C 1182 leaves 22 h 41 after K4 550 arrives on the timetable: more than half a day, so not a connection we count.