UA 2291 then CK 626 at O'Hare
Sacramento → Chicago → Shanghai
Timetable, Chicago time
20:31UA 2291 from Sacramento at the gate
19:27CK 626 to Shanghai leaves the gate
22 h 56 apart on the timetable, overnight
CK 626 leaves 22 h 56 after UA 2291 arrives on the timetable: more than half a day, so not a connection we count.