SN 3697 then LL 5480 at Barcelona
Brussels → Barcelona → Nantes
Timetable, Barcelona time
11:25SN 3697 from Brussels at the gate
10:45LL 5480 to Nantes leaves the gate
23 h 20 apart on the timetable, overnight
LL 5480 leaves 23 h 20 after SN 3697 arrives on the timetable: more than half a day, so not a connection we count.