A3 367 then GQ 830 at Athens
Santorini → Athens → Milan
Timetable, Athens time
15:35A3 367 from Santorini at the gate
14:00GQ 830 to Milan leaves the gate
22 h 25 apart on the timetable, overnight
GQ 830 leaves 22 h 25 after A3 367 arrives on the timetable: more than half a day, so not a connection we count.