AA 6247 then K4 221 at O'Hare
Columbus (Ohio) → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
14:20AA 6247 from Columbus (Ohio) at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
20 h 15 apart on the timetable, overnight
K4 221 leaves 20 h 15 after AA 6247 arrives on the timetable: more than half a day, so not a connection we count.