OS 401 then QR 3616 at Barcelona
Vienna → Barcelona → Bilbao
Timetable, Barcelona time
09:10OS 401 from Vienna at the gatealso LA 5045
21:35QR 3616 to Bilbao leaves the gate
12 h 25 apart on the timetable
QR 3616 leaves 12 h 25 after OS 401 arrives on the timetable: more than half a day, so not a connection we count.