QR 3530 then LA 5751 at Barcelona
Alicante → Barcelona → Athens
Timetable, Barcelona time
18:25QR 3530 from Alicante at the gate
17:10LA 5751 to Athens leaves the gate
22 h 45 apart on the timetable, overnight
LA 5751 leaves 22 h 45 after QR 3530 arrives on the timetable: more than half a day, so not a connection we count.