DL 2917 then K4 532 at O'Hare
New York LaGuardia → Chicago → Seoul
Timetable, Chicago time
09:28DL 2917 from New York LaGuardia at the gate
06:30K4 532 to Seoul leaves the gate
21 h 02 apart on the timetable, overnight
K4 532 leaves 21 h 02 after DL 2917 arrives on the timetable: more than half a day, so not a connection we count.