AA 2343 then CZ 428 at O'Hare
San Diego → Chicago → Shanghai
Timetable, Chicago time
16:29AA 2343 from San Diego at the gate
08:20CZ 428 to Shanghai leaves the gate
15 h 51 apart on the timetable, overnight
CZ 428 leaves 15 h 51 after AA 2343 arrives on the timetable: more than half a day, so not a connection we count.