A3 335 then GQ 350 at Athens
Souda → Athens → Santorini
Timetable, Athens time
16:00A3 335 from Souda at the gate
15:40GQ 350 to Santorini leaves the gate
23 h 40 apart on the timetable, overnight
GQ 350 leaves 23 h 40 after A3 335 arrives on the timetable: more than half a day, so not a connection we count.