QR 3666 then BA 483 at Barcelona
Salerno → Barcelona → London Heathrow
Timetable, Barcelona time
00:30QR 3666 from Salerno at the gatealso LL 5953, VY 8359
15:30BA 483 to London Heathrow leaves the gatealso IB 3780, AY 5938, QR 5984, AA 7061, VY 9561
15 h apart on the timetable
BA 483 leaves 15 h after QR 3666 arrives on the timetable: more than half a day, so not a connection we count.