FR 866 then IB 5406 at Barcelona
Venezia → Barcelona → London Gatwick
Timetable, Barcelona time
22:15FR 866 from Venezia at the gate
12:30IB 5406 to London Gatwick leaves the gatealso LL 5406, VY 7610
14 h 15 apart on the timetable, overnight
IB 5406 leaves 14 h 15 after FR 866 arrives on the timetable: more than half a day, so not a connection we count.