W6 2375 then FR 3108 at Barcelona
Budapest → Barcelona → Luxembourg
Timetable, Barcelona time
08:40W6 2375 from Budapest at the gate
06:25FR 3108 to Luxembourg leaves the gate
21 h 45 apart on the timetable, overnight
FR 3108 leaves 21 h 45 after W6 2375 arrives on the timetable: more than half a day, so not a connection we count.