SQ 387 then LL 5480 at Barcelona
Madrid → Barcelona → Nantes
Timetable, Barcelona time
11:15SQ 387 from Madrid at the gate
10:45LL 5480 to Nantes leaves the gate
23 h 30 apart on the timetable, overnight
LL 5480 leaves 23 h 30 after SQ 387 arrives on the timetable: more than half a day, so not a connection we count.