GQ 671 then OA 4 at Athens
Istanbul → Athens → Karpathos
Timetable, Athens time
23:10GQ 671 from Istanbul at the gate
13:45OA 4 to Karpathos leaves the gate
14 h 35 apart on the timetable, overnight
OA 4 leaves 14 h 35 after GQ 671 arrives on the timetable: more than half a day, so not a connection we count.