FR 3109 then LA 5745 at Barcelona
Luxembourg → Barcelona → Bilbao
Timetable, Barcelona time
13:30FR 3109 from Luxembourg at the gate
12:35LA 5745 to Bilbao leaves the gate
23 h 05 apart on the timetable, overnight
LA 5745 leaves 23 h 05 after FR 3109 arrives on the timetable: more than half a day, so not a connection we count.