FR 573 then KE 914 at Madrid
Porto → Madrid → Seoul
Timetable, Madrid time
08:45FR 573 from Porto at the gate
21:25KE 914 to Seoul leaves the gatealso UX 3601, AR 7874, OZ 9806
12 h 40 apart on the timetable
KE 914 leaves 12 h 40 after FR 573 arrives on the timetable: more than half a day, so not a connection we count.