KL 3334 then U2 2324 at Barcelona
Palma de Mallorca → Barcelona → London Luton
Timetable, Barcelona time
17:55KL 3334 from Palma de Mallorca at the gatealso EY 4329, AF 4824, UX 6072
10:20U2 2324 to London Luton leaves the gate
16 h 25 apart on the timetable, overnight
U2 2324 leaves 16 h 25 after KL 3334 arrives on the timetable: more than half a day, so not a connection we count.