A3 731 then GQ 840 at Athens
Valletta → Athens → Vienna
Timetable, Athens time
12:05A3 731 from Valletta at the gate
08:30GQ 840 to Vienna leaves the gate
20 h 25 apart on the timetable, overnight
GQ 840 leaves 20 h 25 after A3 731 arrives on the timetable: more than half a day, so not a connection we count.