DL 4907 then K4 221 at O'Hare
New York JFK → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
17:20DL 4907 from New York JFK at the gate
16:20K4 221 to Cincinnati Northern Kentucky leaves the gate
23 h apart on the timetable, overnight
K4 221 leaves 23 h after DL 4907 arrives on the timetable: more than half a day, so not a connection we count.