LL 5457 then FR 878 at Barcelona
Vigo → Barcelona → Venezia
Timetable, Barcelona time
11:45LL 5457 from Vigo at the gate
08:30FR 878 to Venezia leaves the gate
20 h 45 apart on the timetable, overnight
FR 878 leaves 20 h 45 after LL 5457 arrives on the timetable: more than half a day, so not a connection we count.