AA 3390 then CK 626 at O'Hare
Greensboro → Chicago → Shanghai
Timetable, Chicago time
19:35AA 3390 from Greensboro at the gate
19:15CK 626 to Shanghai leaves the gate
23 h 40 apart on the timetable, overnight
CK 626 leaves 23 h 40 after AA 3390 arrives on the timetable: more than half a day, so not a connection we count.