W4 6252 then FR 6974 at Fiumicino
Palermo → Rome → Barcelona
Timetable, Rome time
07:40W4 6252 from Palermo at the gate
20:35FR 6974 to Barcelona leaves the gate
12 h 55 apart on the timetable
FR 6974 leaves 12 h 55 after W4 6252 arrives on the timetable: more than half a day, so not a connection we count.