AA 3111 then CA 1018 at O'Hare
St Louis → Chicago → Shanghai
Timetable, Chicago time
13:00AA 3111 from St Louis at the gate
03:00CA 1018 to Shanghai leaves the gate
14 h apart on the timetable, overnight
CA 1018 leaves 14 h after AA 3111 arrives on the timetable: more than half a day, so not a connection we count.