W4 6004 then FR 1814 at Fiumicino
London Luton → Rome → Porto
Timetable, Rome time
18:15W4 6004 from London Luton at the gate
11:00FR 1814 to Porto leaves the gate
16 h 45 apart on the timetable, overnight
FR 1814 leaves 16 h 45 after W4 6004 arrives on the timetable: more than half a day, so not a connection we count.