QR 3617 then QR 3518 at Barcelona
Nantes → Barcelona → Bilbao
Timetable, Barcelona time
13:55QR 3617 from Nantes at the gatealso IB 5481, LL 5481, VY 8141
13:25QR 3518 to Bilbao leaves the gate
23 h 30 apart on the timetable, overnight
QR 3518 leaves 23 h 30 after QR 3617 arrives on the timetable: more than half a day, so not a connection we count.