A3 712 then LA 5754 at Barcelona
Athens → Barcelona → Bordeaux
Timetable, Barcelona time
18:45A3 712 from Athens at the gate
16:40LA 5754 to Bordeaux leaves the gate
21 h 55 apart on the timetable, overnight
LA 5754 leaves 21 h 55 after A3 712 arrives on the timetable: more than half a day, so not a connection we count.