A3 712 then LA 5779 at Barcelona
Athens → Barcelona → Marseille
Timetable, Barcelona time
18:45A3 712 from Athens at the gate
12:35LA 5779 to Marseille leaves the gate
17 h 50 apart on the timetable, overnight
LA 5779 leaves 17 h 50 after A3 712 arrives on the timetable: more than half a day, so not a connection we count.