IB 5415 then VY 1478 at Barcelona
London Gatwick → Barcelona → Bilbao
Timetable, Barcelona time
20:15IB 5415 from London Gatwick at the gatealso LL 5415, VY 7619, BA 8073
19:50VY 1478 to Bilbao leaves the gatealso QR 3528, IB 5178, LL 5178
23 h 35 apart on the timetable, overnight
VY 1478 leaves 23 h 35 after IB 5415 arrives on the timetable: more than half a day, so not a connection we count.