IB 5379 then IB 5462 at Barcelona
Santander → Barcelona → Bordeaux
Timetable, Barcelona time
19:05IB 5379 from Santander at the gate
16:40IB 5462 to Bordeaux leaves the gate
21 h 35 apart on the timetable, overnight
IB 5462 leaves 21 h 35 after IB 5379 arrives on the timetable: more than half a day, so not a connection we count.