LS 1337 then LA 5744 at Barcelona
Birmingham (UK) → Barcelona → Nantes
Timetable, Barcelona time
19:00LS 1337 from Birmingham (UK) at the gate
13:40LA 5744 to Nantes leaves the gate
18 h 40 apart on the timetable, overnight
LA 5744 leaves 18 h 40 after LS 1337 arrives on the timetable: more than half a day, so not a connection we count.