AA 613 then K4 221 at O'Hare
Washington National → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
09:16AA 613 from Washington National at the gate
21:20K4 221 to Cincinnati Northern Kentucky leaves the gate
12 h 04 apart on the timetable
K4 221 leaves 12 h 04 after AA 613 arrives on the timetable: more than half a day, so not a connection we count.