A3 275 then GQ 384 at Athens
Chios → Athens → Thessaloniki
Timetable, Athens time
17:00A3 275 from Chios at the gate
15:45GQ 384 to Thessaloniki leaves the gate
22 h 45 apart on the timetable, overnight
GQ 384 leaves 22 h 45 after A3 275 arrives on the timetable: more than half a day, so not a connection we count.