AA 3055 then Y8 7456 at O'Hare
Washington National → Chicago → Shanghai
Timetable, Chicago time
10:05AA 3055 from Washington National at the gate
01:35Y8 7456 to Shanghai leaves the gate
15 h 30 apart on the timetable, overnight
Y8 7456 leaves 15 h 30 after AA 3055 arrives on the timetable: more than half a day, so not a connection we count.