AF 6740 then K4 532 at O'Hare
Paris Charles de Gaulle → Chicago → Seoul
Timetable, Chicago time
23:40AF 6740 from Paris Charles de Gaulle at the gate
12:15K4 532 to Seoul leaves the gate
12 h 35 apart on the timetable, overnight
K4 532 leaves 12 h 35 after AF 6740 arrives on the timetable: more than half a day, so not a connection we count.