AA 6255 then CA 8414 at O'Hare
Sioux Falls → Chicago → Shanghai
Timetable, Chicago time
17:29AA 6255 from Sioux Falls at the gate
05:40CA 8414 to Shanghai leaves the gate
12 h 11 apart on the timetable, overnight
CA 8414 leaves 12 h 11 after AA 6255 arrives on the timetable: more than half a day, so not a connection we count.