SN 3703 then LA 5754 at Barcelona
Brussels → Barcelona → Bordeaux
Timetable, Barcelona time
16:50SN 3703 from Brussels at the gate
16:40LA 5754 to Bordeaux leaves the gate
23 h 50 apart on the timetable, overnight
LA 5754 leaves 23 h 50 after SN 3703 arrives on the timetable: more than half a day, so not a connection we count.