AA 2903 then Y8 7456 at O'Hare
Washington National → Chicago → Shanghai
Timetable, Chicago time
07:25AA 2903 from Washington National at the gate
01:35Y8 7456 to Shanghai leaves the gate
18 h 10 apart on the timetable, overnight
Y8 7456 leaves 18 h 10 after AA 2903 arrives on the timetable: more than half a day, so not a connection we count.