AA 457 then CA 1018 at O'Hare
Washington National → Chicago → Shanghai
Timetable, Chicago time
14:15AA 457 from Washington National at the gate
03:10CA 1018 to Shanghai leaves the gate
12 h 55 apart on the timetable, overnight
CA 1018 leaves 12 h 55 after AA 457 arrives on the timetable: more than half a day, so not a connection we count.