AA 3174 then CZ 438 at O'Hare
Miami → Chicago → Shanghai
Timetable, Chicago time
11:05AA 3174 from Miami at the gate
01:45CZ 438 to Shanghai leaves the gate
14 h 40 apart on the timetable, overnight
CZ 438 leaves 14 h 40 after AA 3174 arrives on the timetable: more than half a day, so not a connection we count.