CZ 6155 then 9C 8567 at Pudong
Changchun → Shanghai → Jeju City
Timetable, Shanghai time
17:45CZ 6155 from Changchun at the gate
15:559C 8567 to Jeju City leaves the gate
22 h 10 apart on the timetable, overnight
9C 8567 leaves 22 h 10 after CZ 6155 arrives on the timetable: more than half a day, so not a connection we count.