OA 15 then GQ 830 at Athens
Naxos → Athens → Milan
Timetable, Athens time
16:15OA 15 from Naxos at the gate
14:00GQ 830 to Milan leaves the gate
21 h 45 apart on the timetable, overnight
GQ 830 leaves 21 h 45 after OA 15 arrives on the timetable: more than half a day, so not a connection we count.