AA 4918 then K4 221 at O'Hare
Colorado Springs → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
17:29AA 4918 from Colorado Springs at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
17 h 06 apart on the timetable, overnight
K4 221 leaves 17 h 06 after AA 4918 arrives on the timetable: more than half a day, so not a connection we count.