CK 227 then UA 8137 at O'Hare
Seattle (SEA) → Chicago → Los Angeles
Timetable, Chicago time
14:03CK 227 from Seattle (SEA) at the gate
13:50UA 8137 to Los Angeles leaves the gate
23 h 47 apart on the timetable, overnight
UA 8137 leaves 23 h 47 after CK 227 arrives on the timetable: more than half a day, so not a connection we count.