CK 225 then AA 4518 at O'Hare
Seattle (SEA) → Chicago → Memphis
Timetable, Chicago time
08:18CK 225 from Seattle (SEA) at the gate
08:06AA 4518 to Memphis leaves the gate
23 h 48 apart on the timetable, overnight
AA 4518 leaves 23 h 48 after CK 225 arrives on the timetable: more than half a day, so not a connection we count.