IB 5387 then BA 475 at Barcelona
Bologna → Barcelona → London Heathrow
Timetable, Barcelona time
14:20IB 5387 from Bologna at the gatealso LL 5387
11:25BA 475 to London Heathrow leaves the gate
21 h 05 apart on the timetable, overnight
BA 475 leaves 21 h 05 after IB 5387 arrives on the timetable: more than half a day, so not a connection we count.