UA 4802 then CK 626 at O'Hare
Columbus (Ohio) → Chicago → Shanghai
Timetable, Chicago time
11:41UA 4802 from Columbus (Ohio) at the gate
00:01CK 626 to Shanghai leaves the gate
12 h 20 apart on the timetable, overnight
CK 626 leaves 12 h 20 after UA 4802 arrives on the timetable: more than half a day, so not a connection we count.