MF 8551 then EU 6678 at Pudong
Tianjin → Shanghai → Chengdu
Timetable, Shanghai time
14:20MF 8551 from Tianjin at the gate
12:55EU 6678 to Chengdu leaves the gate
22 h 35 apart on the timetable, overnight
EU 6678 leaves 22 h 35 after MF 8551 arrives on the timetable: more than half a day, so not a connection we count.