IB 2602 then QR 3668 at Barcelona
Buenos Aires → Barcelona → Nantes
Timetable, Barcelona time
05:30IB 2602 from Buenos Aires at the gatealso LL 2602
19:55QR 3668 to Nantes leaves the gatealso IB 5942, LL 5942, VY 8142
14 h 25 apart on the timetable
QR 3668 leaves 14 h 25 after IB 2602 arrives on the timetable: more than half a day, so not a connection we count.