DL 2804 then K4 532 at O'Hare
Boston → Chicago → Seoul
Timetable, Chicago time
22:36DL 2804 from Boston at the gate
12:15K4 532 to Seoul leaves the gate
13 h 39 apart on the timetable, overnight
K4 532 leaves 13 h 39 after DL 2804 arrives on the timetable: more than half a day, so not a connection we count.