KE 852 then 7C 2623 at Incheon
Beijing Capital → Seoul → Singapore
Timetable, Seoul time
21:55KE 852 from Beijing Capital at the gate
18:107C 2623 to Singapore leaves the gate
20 h 15 apart on the timetable, overnight
7C 2623 leaves 20 h 15 after KE 852 arrives on the timetable: more than half a day, so not a connection we count.