OS 401 then IB 5128 at Barcelona
Vienna → Barcelona → Alicante
Timetable, Barcelona time
09:10OS 401 from Vienna at the gatealso LA 5045
08:55IB 5128 to Alicante leaves the gate
23 h 45 apart on the timetable, overnight
IB 5128 leaves 23 h 45 after OS 401 arrives on the timetable: more than half a day, so not a connection we count.