EC 7174 then LL 5508 at Barcelona
Berlin → Barcelona → Bilbao
Timetable, Barcelona time
23:05EC 7174 from Berlin at the gate
21:35LL 5508 to Bilbao leaves the gate
22 h 30 apart on the timetable, overnight
LL 5508 leaves 22 h 30 after EC 7174 arrives on the timetable: more than half a day, so not a connection we count.