AA 3512 then CZ 438 at O'Hare
Cedar Rapids → Chicago → Shanghai
Timetable, Chicago time
06:29AA 3512 from Cedar Rapids at the gate
01:45CZ 438 to Shanghai leaves the gate
19 h 16 apart on the timetable, overnight
CZ 438 leaves 19 h 16 after AA 3512 arrives on the timetable: more than half a day, so not a connection we count.