A3 735 then A3 154 at Athens
Tunis → Athens → Kavala
Timetable, Athens time
18:45A3 735 from Tunis at the gate
18:00A3 154 to Kavala leaves the gate
23 h 15 apart on the timetable, overnight
A3 154 leaves 23 h 15 after A3 735 arrives on the timetable: more than half a day, so not a connection we count.