FR 3929 then LA 5752 at Barcelona
Trieste → Barcelona → Bilbao
Timetable, Barcelona time
17:05FR 3929 from Trieste at the gate
12:35LA 5752 to Bilbao leaves the gate
19 h 30 apart on the timetable, overnight
LA 5752 leaves 19 h 30 after FR 3929 arrives on the timetable: more than half a day, so not a connection we count.