IB 5415 then QR 3683 at Barcelona
London Gatwick → Barcelona → Santander
Timetable, Barcelona time
20:15IB 5415 from London Gatwick at the gatealso LL 5415, VY 7619, BA 8073
16:05QR 3683 to Santander leaves the gate
19 h 50 apart on the timetable, overnight
QR 3683 leaves 19 h 50 after IB 5415 arrives on the timetable: more than half a day, so not a connection we count.