GQ 311 then OA 4 at Athens
Samos → Athens → Karpathos
Timetable, Athens time
19:00GQ 311 from Samos at the gate
13:45OA 4 to Karpathos leaves the gate
18 h 45 apart on the timetable, overnight
OA 4 leaves 18 h 45 after GQ 311 arrives on the timetable: more than half a day, so not a connection we count.