AA 4485 then K4 221 at O'Hare
Dayton → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
19:18AA 4485 from Dayton at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
15 h 17 apart on the timetable, overnight
K4 221 leaves 15 h 17 after AA 4485 arrives on the timetable: more than half a day, so not a connection we count.