EU 6677 then CA 919 at Pudong
Chengdu → Shanghai → Tokyo Narita
Timetable, Shanghai time
20:00EU 6677 from Chengdu at the gate
14:05CA 919 to Tokyo Narita leaves the gate
18 h 05 apart on the timetable, overnight
CA 919 leaves 18 h 05 after EU 6677 arrives on the timetable: more than half a day, so not a connection we count.