KE 852 then OZ 751 at Incheon
Beijing Capital → Seoul → Singapore
Timetable, Seoul time
21:55KE 852 from Beijing Capital at the gate
16:20OZ 751 to Singapore leaves the gate
18 h 25 apart on the timetable, overnight
OZ 751 leaves 18 h 25 after KE 852 arrives on the timetable: more than half a day, so not a connection we count.