W6 4315 then JU 405 at Fiumicino
Sofia → Rome → Belgrade
Timetable, Rome time
08:20W6 4315 from Sofia at the gate
20:50JU 405 to Belgrade leaves the gate
12 h 30 apart on the timetable
JU 405 leaves 12 h 30 after W6 4315 arrives on the timetable: more than half a day, so not a connection we count.