CV 251 then CA 3104 at O'Hare
Anchorage → Chicago → Shanghai
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
17:40CA 3104 to Shanghai leaves the gate
22 h 40 apart on the timetable, overnight
CA 3104 leaves 22 h 40 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.