AA 4996 then K4 221 at O'Hare
Cedar Rapids → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
12:30AA 4996 from Cedar Rapids at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
22 h 05 apart on the timetable, overnight
K4 221 leaves 22 h 05 after AA 4996 arrives on the timetable: more than half a day, so not a connection we count.