LL 5487 then LA 5768 at Barcelona
Zurich → Barcelona → Santander
Timetable, Barcelona time
11:30LL 5487 from Zurich at the gate
11:00LA 5768 to Santander leaves the gate
23 h 30 apart on the timetable, overnight
LA 5768 leaves 23 h 30 after LL 5487 arrives on the timetable: more than half a day, so not a connection we count.