FR 1526 then IB 5414 at Barcelona
Valletta → Barcelona → London Gatwick
Timetable, Barcelona time
15:55FR 1526 from Valletta at the gate
15:20IB 5414 to London Gatwick leaves the gatealso LL 5414, VY 7618, BA 8072
23 h 25 apart on the timetable, overnight
IB 5414 leaves 23 h 25 after FR 1526 arrives on the timetable: more than half a day, so not a connection we count.