W9 5377 then FR 3180 at Barcelona
London Luton → Barcelona → Rome
Timetable, Barcelona time
15:25W9 5377 from London Luton at the gate
07:55FR 3180 to Rome leaves the gate
16 h 30 apart on the timetable, overnight
FR 3180 leaves 16 h 30 after W9 5377 arrives on the timetable: more than half a day, so not a connection we count.