AA 1799 then K4 221 at O'Hare
Cancún → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
19:20AA 1799 from Cancún at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
15 h 15 apart on the timetable, overnight
K4 221 leaves 15 h 15 after AA 1799 arrives on the timetable: more than half a day, so not a connection we count.