FR 338 then FR 2703 at Dublin
London Luton → Dublin → Seville
Timetable, Dublin time
16:20FR 338 from London Luton at the gate
14:10FR 2703 to Seville leaves the gate
21 h 50 apart on the timetable, overnight
FR 2703 leaves 21 h 50 after FR 338 arrives on the timetable: more than half a day, so not a connection we count.