IB 417 then QR 3683 at Barcelona
Madrid → Barcelona → Santander
Timetable, Barcelona time
17:10IB 417 from Madrid at the gatealso LA 1683, LL 3017, OB 5004, VY 5058, AV 6076, QR 6894, BA 7135, AA 8824
16:05QR 3683 to Santander leaves the gate
22 h 55 apart on the timetable, overnight
QR 3683 leaves 22 h 55 after IB 417 arrives on the timetable: more than half a day, so not a connection we count.