IB 5171 then IB 5462 at Barcelona
Bilbao → Barcelona → Bordeaux
Timetable, Barcelona time
18:50IB 5171 from Bilbao at the gate
16:40IB 5462 to Bordeaux leaves the gate
21 h 50 apart on the timetable, overnight
IB 5462 leaves 21 h 50 after IB 5171 arrives on the timetable: more than half a day, so not a connection we count.