U2 6653 then FR 3108 at Barcelona
Birmingham (UK) → Barcelona → Luxembourg
Timetable, Barcelona time
09:25U2 6653 from Birmingham (UK) at the gate
08:35FR 3108 to Luxembourg leaves the gate
23 h 10 apart on the timetable, overnight
FR 3108 leaves 23 h 10 after U2 6653 arrives on the timetable: more than half a day, so not a connection we count.