AA 2448 then CZ 438 at O'Hare
Harrisburg → Chicago → Shanghai
Timetable, Chicago time
07:21AA 2448 from Harrisburg at the gate
01:45CZ 438 to Shanghai leaves the gate
18 h 24 apart on the timetable, overnight
CZ 438 leaves 18 h 24 after AA 2448 arrives on the timetable: more than half a day, so not a connection we count.