IB 2602 then QR 3630 at Barcelona
Buenos Aires → Barcelona → Düsseldorf
Timetable, Barcelona time
05:30IB 2602 from Buenos Aires at the gatealso LL 2602
18:00QR 3630 to Düsseldorf leaves the gatealso IB 5051, LL 5051
12 h 30 apart on the timetable
QR 3630 leaves 12 h 30 after IB 2602 arrives on the timetable: more than half a day, so not a connection we count.