FR 3130 then FR 7808 at Barcelona
Ibiza → Barcelona → London Luton
Timetable, Barcelona time
20:40FR 3130 from Ibiza at the gate
12:45FR 7808 to London Luton leaves the gate
16 h 05 apart on the timetable, overnight
FR 7808 leaves 16 h 05 after FR 3130 arrives on the timetable: more than half a day, so not a connection we count.