AA 4649 then K4 221 at O'Hare
Pittsburgh → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
10:55AA 4649 from Pittsburgh at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
23 h 40 apart on the timetable, overnight
K4 221 leaves 23 h 40 after AA 4649 arrives on the timetable: more than half a day, so not a connection we count.