A3 629 then A3 318 at Athens
Luxembourg → Athens → Heraklion
Timetable, Athens time
21:55A3 629 from Luxembourg at the gate
16:50A3 318 to Heraklion leaves the gate
18 h 55 apart on the timetable, overnight
A3 318 leaves 18 h 55 after A3 629 arrives on the timetable: more than half a day, so not a connection we count.