BA 486 then FR 777 at Barcelona
London Heathrow → Barcelona → Venezia
Timetable, Barcelona time
18:30BA 486 from London Heathrow at the gate
13:50FR 777 to Venezia leaves the gate
19 h 20 apart on the timetable, overnight
FR 777 leaves 19 h 20 after BA 486 arrives on the timetable: more than half a day, so not a connection we count.