QR 3755 then OZ 512 at Barcelona
Paris Orly → Barcelona → Seoul
Timetable, Barcelona time
23:30QR 3755 from Paris Orly at the gatealso IB 5879, LL 5879, VY 8029
20:40OZ 512 to Seoul leaves the gatealso KE 5912
21 h 10 apart on the timetable, overnight
OZ 512 leaves 21 h 10 after QR 3755 arrives on the timetable: more than half a day, so not a connection we count.