GQ 311 then A3 116 at Athens
Samos → Athens → Thessaloniki
Timetable, Athens time
15:40GQ 311 from Samos at the gate
13:00A3 116 to Thessaloniki leaves the gate
21 h 20 apart on the timetable, overnight
A3 116 leaves 21 h 20 after GQ 311 arrives on the timetable: more than half a day, so not a connection we count.