U2 2323 then FR 3800 at Barcelona
London Luton → Barcelona → Birmingham (UK)
Timetable, Barcelona time
20:10U2 2323 from London Luton at the gate
11:05FR 3800 to Birmingham (UK) leaves the gate
14 h 55 apart on the timetable, overnight
FR 3800 leaves 14 h 55 after U2 2323 arrives on the timetable: more than half a day, so not a connection we count.