IB 2602 then FR 7539 at Barcelona
Buenos Aires → Barcelona → Milan
Timetable, Barcelona time
08:15IB 2602 from Buenos Aires at the gatealso LL 2602, AY 5352, QR 7230
20:35FR 7539 to Milan leaves the gate
12 h 20 apart on the timetable
FR 7539 leaves 12 h 20 after IB 2602 arrives on the timetable: more than half a day, so not a connection we count.