IB 413 then QR 3518 at Barcelona
Madrid → Barcelona → Bilbao
Timetable, Barcelona time
14:20IB 413 from Madrid at the gatealso IB 413S, CX 1841, LL 3013, VY 5050, LA 5401, AV 6146, QR 6939, BA 7133, AA 8688
13:25QR 3518 to Bilbao leaves the gate
23 h 05 apart on the timetable, overnight
QR 3518 leaves 23 h 05 after IB 413 arrives on the timetable: more than half a day, so not a connection we count.