KY 8209 then EU 6678 at Pudong
Kunming → Shanghai → Chengdu
Timetable, Shanghai time
14:55KY 8209 from Kunming at the gate
12:55EU 6678 to Chengdu leaves the gate
22 h apart on the timetable, overnight
EU 6678 leaves 22 h after KY 8209 arrives on the timetable: more than half a day, so not a connection we count.