IB 5403 then QR 3518 at Barcelona
London Gatwick → Barcelona → Bilbao
Timetable, Barcelona time
16:10IB 5403 from London Gatwick at the gatealso LL 5403, VY 7607, BA 8061
12:40QR 3518 to Bilbao leaves the gate
20 h 30 apart on the timetable, overnight
QR 3518 leaves 20 h 30 after IB 5403 arrives on the timetable: more than half a day, so not a connection we count.