AA 4002 then Y8 7456 at O'Hare
Northwest Arkansas → Chicago → Shanghai
Timetable, Chicago time
07:15AA 4002 from Northwest Arkansas at the gate
01:35Y8 7456 to Shanghai leaves the gate
18 h 20 apart on the timetable, overnight
Y8 7456 leaves 18 h 20 after AA 4002 arrives on the timetable: more than half a day, so not a connection we count.