DY 5503 then OZ 512 at Barcelona
Stockholm → Barcelona → Seoul
Timetable, Barcelona time
21:45DY 5503 from Stockholm at the gate
20:40OZ 512 to Seoul leaves the gatealso KE 5912
22 h 55 apart on the timetable, overnight
OZ 512 leaves 22 h 55 after DY 5503 arrives on the timetable: more than half a day, so not a connection we count.