AA 3546 then K4 221 at O'Hare
Detroit → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
11:00AA 3546 from Detroit at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
23 h 35 apart on the timetable, overnight
K4 221 leaves 23 h 35 after AA 3546 arrives on the timetable: more than half a day, so not a connection we count.