3U 8963 then 3U 8204 at Pudong
Chengdu → Shanghai → Kunming
Timetable, Shanghai time
11:453U 8963 from Chengdu at the gate
09:553U 8204 to Kunming leaves the gate
22 h 10 apart on the timetable, overnight
3U 8204 leaves 22 h 10 after 3U 8963 arrives on the timetable: more than half a day, so not a connection we count.