AA 6263 then CZ 436 at O'Hare
Flint → Chicago → Shanghai
Timetable, Chicago time
06:30AA 6263 from Flint at the gate
00:45CZ 436 to Shanghai leaves the gate
18 h 15 apart on the timetable, overnight
CZ 436 leaves 18 h 15 after AA 6263 arrives on the timetable: more than half a day, so not a connection we count.