AA 457 then CA 1020 at O'Hare
Washington National → Chicago → Shanghai
Timetable, Chicago time
14:15AA 457 from Washington National at the gate
08:17CA 1020 to Shanghai leaves the gate
18 h 02 apart on the timetable, overnight
CA 1020 leaves 18 h 02 after AA 457 arrives on the timetable: more than half a day, so not a connection we count.