FR 338 then FR 5910 at Dublin
London Luton → Dublin → Lanzarote
Timetable, Dublin time
18:20FR 338 from London Luton at the gate
15:55FR 5910 to Lanzarote leaves the gate
21 h 35 apart on the timetable, overnight
FR 5910 leaves 21 h 35 after FR 338 arrives on the timetable: more than half a day, so not a connection we count.