FR 776 then FR 8215 at Barcelona
Venezia → Barcelona → London Stansted
Timetable, Barcelona time
15:35FR 776 from Venezia at the gate
11:25FR 8215 to London Stansted leaves the gate
19 h 50 apart on the timetable, overnight
FR 8215 leaves 19 h 50 after FR 776 arrives on the timetable: more than half a day, so not a connection we count.