AA 488 then CA 1020 at O'Hare
Washington National → Chicago → Shanghai
Timetable, Chicago time
22:00AA 488 from Washington National at the gate
19:30CA 1020 to Shanghai leaves the gate
21 h 30 apart on the timetable, overnight
CA 1020 leaves 21 h 30 after AA 488 arrives on the timetable: more than half a day, so not a connection we count.