FR 5485 then AR 1135 at Madrid
Porto → Madrid → Buenos Aires
Timetable, Madrid time
21:05FR 5485 from Porto at the gate
09:55AR 1135 to Buenos Aires leaves the gate
12 h 50 apart on the timetable, overnight
AR 1135 leaves 12 h 50 after FR 5485 arrives on the timetable: more than half a day, so not a connection we count.