AA 642 then K4 217 at O'Hare
Dallas-Fort Worth → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
13:10AA 642 from Dallas-Fort Worth at the gate
11:35K4 217 to Cincinnati Northern Kentucky leaves the gate
22 h 25 apart on the timetable, overnight
K4 217 leaves 22 h 25 after AA 642 arrives on the timetable: more than half a day, so not a connection we count.