AA 2327 then K4 221 at O'Hare
Washington National → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
18:33AA 2327 from Washington National at the gate
16:20K4 221 to Cincinnati Northern Kentucky leaves the gate
21 h 47 apart on the timetable, overnight
K4 221 leaves 21 h 47 after AA 2327 arrives on the timetable: more than half a day, so not a connection we count.