GQ 391 then A3 734 at Athens
Thessaloniki → Athens → Tunis
Timetable, Athens time
08:25GQ 391 from Thessaloniki at the gate
08:00A3 734 to Tunis leaves the gate
23 h 35 apart on the timetable, overnight
A3 734 leaves 23 h 35 after GQ 391 arrives on the timetable: more than half a day, so not a connection we count.