AA 3515 then Y8 7456 at O'Hare
Appleton → Chicago → Shanghai
Timetable, Chicago time
08:40AA 3515 from Appleton at the gate
01:35Y8 7456 to Shanghai leaves the gate
16 h 55 apart on the timetable, overnight
Y8 7456 leaves 16 h 55 after AA 3515 arrives on the timetable: more than half a day, so not a connection we count.