UA 3668 then CA 3104 at O'Hare
Cincinnati Northern Kentucky → Chicago → Shanghai
Timetable, Chicago time
11:49UA 3668 from Cincinnati Northern Kentucky at the gate
11:40CA 3104 to Shanghai leaves the gate
23 h 51 apart on the timetable, overnight
CA 3104 leaves 23 h 51 after UA 3668 arrives on the timetable: more than half a day, so not a connection we count.