IB 5387 then IB 5402 at Barcelona
Bologna → Barcelona → London Gatwick
Timetable, Barcelona time
14:20IB 5387 from Bologna at the gatealso LL 5387
11:00IB 5402 to London Gatwick leaves the gatealso LL 5402, VY 7606
20 h 40 apart on the timetable, overnight
IB 5402 leaves 20 h 40 after IB 5387 arrives on the timetable: more than half a day, so not a connection we count.