AA 4942 then K4 221 at O'Hare
Colorado Springs → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
16:31AA 4942 from Colorado Springs at the gate
16:20K4 221 to Cincinnati Northern Kentucky leaves the gate
23 h 49 apart on the timetable, overnight
K4 221 leaves 23 h 49 after AA 4942 arrives on the timetable: more than half a day, so not a connection we count.