KE 852 then KE 833 at Incheon
Beijing Capital → Seoul → Shenyang
Timetable, Seoul time
21:55KE 852 from Beijing Capital at the gate
14:25KE 833 to Shenyang leaves the gate
16 h 30 apart on the timetable, overnight
KE 833 leaves 16 h 30 after KE 852 arrives on the timetable: more than half a day, so not a connection we count.