EC 7154 then VY 1206 at Barcelona
Milan → Barcelona → Santander
Timetable, Barcelona time
23:15EC 7154 from Milan at the gate
19:15VY 1206 to Santander leaves the gatealso IB 5390, LL 5390
20 h apart on the timetable, overnight
VY 1206 leaves 20 h after EC 7154 arrives on the timetable: more than half a day, so not a connection we count.