AA 706 then K4 221 at O'Hare
Washington National → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
16:18AA 706 from Washington National at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
18 h 17 apart on the timetable, overnight
K4 221 leaves 18 h 17 after AA 706 arrives on the timetable: more than half a day, so not a connection we count.