GQ 311 then A3 118 at Athens
Samos → Athens → Thessaloniki
Timetable, Athens time
15:40GQ 311 from Samos at the gate
14:40A3 118 to Thessaloniki leaves the gate
23 h apart on the timetable, overnight
A3 118 leaves 23 h after GQ 311 arrives on the timetable: more than half a day, so not a connection we count.