AA 3549 then K4 221 at O'Hare
Fort Wayne → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
11:54AA 3549 from Fort Wayne at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
22 h 41 apart on the timetable, overnight
K4 221 leaves 22 h 41 after AA 3549 arrives on the timetable: more than half a day, so not a connection we count.