AA 2848 then K4 221 at O'Hare
New York JFK → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
12:35AA 2848 from New York JFK at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
22 h apart on the timetable, overnight
K4 221 leaves 22 h after AA 2848 arrives on the timetable: more than half a day, so not a connection we count.