W4 6022 then FR 4852 at Fiumicino
Barcelona → Rome → Catania
Timetable, Rome time
17:10W4 6022 from Barcelona at the gate
17:05FR 4852 to Catania leaves the gate
23 h 55 apart on the timetable, overnight
FR 4852 leaves 23 h 55 after W4 6022 arrives on the timetable: more than half a day, so not a connection we count.