W4 2341 then FR 3181 at Fiumicino
Budapest → Rome → Barcelona
Timetable, Rome time
18:35W4 2341 from Budapest at the gate
08:35FR 3181 to Barcelona leaves the gate
14 h apart on the timetable, overnight
FR 3181 leaves 14 h after W4 2341 arrives on the timetable: more than half a day, so not a connection we count.