FR 866 then LA 5772 at Barcelona
Venezia → Barcelona → London Gatwick
Timetable, Barcelona time
14:15FR 866 from Venezia at the gate
11:00LA 5772 to London Gatwick leaves the gate
20 h 45 apart on the timetable, overnight
LA 5772 leaves 20 h 45 after FR 866 arrives on the timetable: more than half a day, so not a connection we count.