QR 3767 then A3 711 at Barcelona
Palermo → Barcelona → Athens
Timetable, Barcelona time
11:50QR 3767 from Palermo at the gate
11:20A3 711 to Athens leaves the gate
23 h 30 apart on the timetable, overnight
A3 711 leaves 23 h 30 after QR 3767 arrives on the timetable: more than half a day, so not a connection we count.