AA 4527 then K4 221 at O'Hare
Baltimore → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
20:04AA 4527 from Baltimore at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
14 h 31 apart on the timetable, overnight
K4 221 leaves 14 h 31 after AA 4527 arrives on the timetable: more than half a day, so not a connection we count.