FR 6301 then LA 5747 at Barcelona
Sofia → Barcelona → Bilbao
Timetable, Barcelona time
23:15FR 6301 from Sofia at the gate
12:50LA 5747 to Bilbao leaves the gate
13 h 35 apart on the timetable, overnight
LA 5747 leaves 13 h 35 after FR 6301 arrives on the timetable: more than half a day, so not a connection we count.