GQ 681 then A3 314 at Athens
Sofia → Athens → Heraklion
Timetable, Athens time
21:55GQ 681 from Sofia at the gate
13:25A3 314 to Heraklion leaves the gate
15 h 30 apart on the timetable, overnight
A3 314 leaves 15 h 30 after GQ 681 arrives on the timetable: more than half a day, so not a connection we count.