EU 6677 then JL 876 at Pudong
Chengdu → Shanghai → Tokyo Narita
Timetable, Shanghai time
20:00EU 6677 from Chengdu at the gate
14:00JL 876 to Tokyo Narita leaves the gate
18 h apart on the timetable, overnight
JL 876 leaves 18 h after EU 6677 arrives on the timetable: more than half a day, so not a connection we count.