IB 5409 then QR 3683 at Barcelona
London Gatwick → Barcelona → Santander
Timetable, Barcelona time
18:30IB 5409 from London Gatwick at the gatealso LL 5409, VY 7613, BA 8067
16:05QR 3683 to Santander leaves the gate
21 h 35 apart on the timetable, overnight
QR 3683 leaves 21 h 35 after IB 5409 arrives on the timetable: more than half a day, so not a connection we count.