BA 8083 then VY 1466 at Barcelona
London Heathrow → Barcelona → Bilbao
Timetable, Barcelona time
13:10BA 8083 from London Heathrow at the gate
12:35VY 1466 to Bilbao leaves the gatealso QR 3523, IB 5166, LL 5166
23 h 25 apart on the timetable, overnight
VY 1466 leaves 23 h 25 after BA 8083 arrives on the timetable: more than half a day, so not a connection we count.