CA 1228 then KE 852 at Beijing
Yinchuan → Beijing → Seoul Incheon
Timetable, Beijing time
16:25CA 1228 from Yinchuan at the gate
10:40KE 852 to Seoul Incheon leaves the gate
18 h 15 apart on the timetable, overnight
KE 852 leaves 18 h 15 after CA 1228 arrives on the timetable: more than half a day, so not a connection we count.