AA 3994 then CZ 436 at O'Hare
Wichita → Chicago → Shanghai
Timetable, Chicago time
08:50AA 3994 from Wichita at the gate
00:45CZ 436 to Shanghai leaves the gate
15 h 55 apart on the timetable, overnight
CZ 436 leaves 15 h 55 after AA 3994 arrives on the timetable: more than half a day, so not a connection we count.