CK 227 then CZ 2502 at O'Hare
Seattle (SEA) → Chicago → Shanghai
Timetable, Chicago time
12:27CK 227 from Seattle (SEA) at the gate
01:45CZ 2502 to Shanghai leaves the gate
13 h 18 apart on the timetable, overnight
CZ 2502 leaves 13 h 18 after CK 227 arrives on the timetable: more than half a day, so not a connection we count.