AA 3178 then K4 221 at O'Hare
Charlotte → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
17:40AA 3178 from Charlotte at the gate
16:20K4 221 to Cincinnati Northern Kentucky leaves the gate
22 h 40 apart on the timetable, overnight
K4 221 leaves 22 h 40 after AA 3178 arrives on the timetable: more than half a day, so not a connection we count.