AA 6332 then K4 221 at O'Hare
St Louis → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
14:56AA 6332 from St Louis at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
19 h 39 apart on the timetable, overnight
K4 221 leaves 19 h 39 after AA 6332 arrives on the timetable: more than half a day, so not a connection we count.