IB 415 then QR 3683 at Barcelona
Madrid → Barcelona → Santander
Timetable, Barcelona time
16:15IB 415 from Madrid at the gatealso IB 415S, LA 1522, LL 3015, VY 5057, AV 6016, QR 6889, BA 7134, AA 8630
16:05QR 3683 to Santander leaves the gate
23 h 50 apart on the timetable, overnight
QR 3683 leaves 23 h 50 after IB 415 arrives on the timetable: more than half a day, so not a connection we count.