IB 5389 then BA 483 at Barcelona
Bari → Barcelona → London Heathrow
Timetable, Barcelona time
23:25IB 5389 from Bari at the gatealso LL 5389, VY 6113
15:30BA 483 to London Heathrow leaves the gate
16 h 05 apart on the timetable, overnight
BA 483 leaves 16 h 05 after IB 5389 arrives on the timetable: more than half a day, so not a connection we count.