EU 6677 then 9C 6217 at Pudong
Chengdu → Shanghai → Tokyo Narita
Timetable, Shanghai time
20:00EU 6677 from Chengdu at the gate
15:009C 6217 to Tokyo Narita leaves the gate
19 h apart on the timetable, overnight
9C 6217 leaves 19 h after EU 6677 arrives on the timetable: more than half a day, so not a connection we count.