AA 2137 then CA 1020 at O'Hare
Austin → Chicago → Shanghai
Timetable, Chicago time
08:59AA 2137 from Austin at the gate
03:55CA 1020 to Shanghai leaves the gate
18 h 56 apart on the timetable, overnight
CA 1020 leaves 18 h 56 after AA 2137 arrives on the timetable: more than half a day, so not a connection we count.