IB 5953 then IB 5424 at Barcelona
Salerno → Barcelona → London Heathrow
Timetable, Barcelona time
00:30IB 5953 from Salerno at the gate
18:45IB 5424 to London Heathrow leaves the gatealso LL 5424, VY 7642, BA 8084
18 h 15 apart on the timetable
IB 5424 leaves 18 h 15 after IB 5953 arrives on the timetable: more than half a day, so not a connection we count.