AA 4557 then Y8 7456 at O'Hare
Indianapolis → Chicago → Shanghai
Timetable, Chicago time
07:11AA 4557 from Indianapolis at the gate
01:35Y8 7456 to Shanghai leaves the gate
18 h 24 apart on the timetable, overnight
Y8 7456 leaves 18 h 24 after AA 4557 arrives on the timetable: more than half a day, so not a connection we count.