AA 3429 then K4 221 at O'Hare
Cleveland → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
13:35AA 3429 from Cleveland at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
21 h apart on the timetable, overnight
K4 221 leaves 21 h after AA 3429 arrives on the timetable: more than half a day, so not a connection we count.