CA 1844 then KE 852 at Beijing
Hefei → Beijing → Seoul Incheon
Timetable, Beijing time
18:15CA 1844 from Hefei at the gate
10:40KE 852 to Seoul Incheon leaves the gate
16 h 25 apart on the timetable, overnight
KE 852 leaves 16 h 25 after CA 1844 arrives on the timetable: more than half a day, so not a connection we count.