AS 407 then K4 221 at O'Hare
Seattle (SEA) → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
15:00AS 407 from Seattle (SEA) at the gate
10:35K4 221 to Cincinnati Northern Kentucky leaves the gate
19 h 35 apart on the timetable, overnight
K4 221 leaves 19 h 35 after AS 407 arrives on the timetable: more than half a day, so not a connection we count.