BA 480 then FR 777 at Barcelona
London Heathrow → Barcelona → Venezia
Timetable, Barcelona time
13:50BA 480 from London Heathrow at the gatealso IB 3662, QR 6297, AA 6818, VY 9558
13:25FR 777 to Venezia leaves the gate
23 h 35 apart on the timetable, overnight
FR 777 leaves 23 h 35 after BA 480 arrives on the timetable: more than half a day, so not a connection we count.