AA 3002 then Y8 7456 at O'Hare
New York LaGuardia → Chicago → Shanghai
Timetable, Chicago time
08:59AA 3002 from New York LaGuardia at the gate
01:35Y8 7456 to Shanghai leaves the gate
16 h 36 apart on the timetable, overnight
Y8 7456 leaves 16 h 36 after AA 3002 arrives on the timetable: more than half a day, so not a connection we count.