A3 791 then SN 3246 at Athens
Ljubljana → Athens → Brussels
Timetable, Athens time
20:45A3 791 from Ljubljana at the gate
16:00SN 3246 to Brussels leaves the gate
19 h 15 apart on the timetable, overnight
SN 3246 leaves 19 h 15 after A3 791 arrives on the timetable: more than half a day, so not a connection we count.