AA 3381 then CZ 438 at O'Hare
Huntsville → Chicago → Shanghai
Timetable, Chicago time
08:26AA 3381 from Huntsville at the gate
01:45CZ 438 to Shanghai leaves the gate
17 h 19 apart on the timetable, overnight
CZ 438 leaves 17 h 19 after AA 3381 arrives on the timetable: more than half a day, so not a connection we count.