IB 5171 then IB 5420 at Barcelona
Bilbao → Barcelona → London Gatwick
Timetable, Barcelona time
18:50IB 5171 from Bilbao at the gate
18:10IB 5420 to London Gatwick leaves the gatealso LL 5420, VY 7624, BA 8078
23 h 20 apart on the timetable, overnight
IB 5420 leaves 23 h 20 after IB 5171 arrives on the timetable: more than half a day, so not a connection we count.