A3 357 then GQ 690 at Athens
Santorini → Athens → Tirana
Timetable, Athens time
13:35A3 357 from Santorini at the gate
07:50GQ 690 to Tirana leaves the gate
18 h 15 apart on the timetable, overnight
GQ 690 leaves 18 h 15 after A3 357 arrives on the timetable: more than half a day, so not a connection we count.