EU 6677 then CZ 6516 at Pudong
Chengdu → Shanghai → Shenyang
Timetable, Shanghai time
20:00EU 6677 from Chengdu at the gate
16:00CZ 6516 to Shenyang leaves the gate
20 h apart on the timetable, overnight
CZ 6516 leaves 20 h after EU 6677 arrives on the timetable: more than half a day, so not a connection we count.