QR 5523 then LA 5783 at Barcelona
Granada → Barcelona → Nantes
Timetable, Barcelona time
00:10QR 5523 from Granada at the gatealso LA 5784, LA 5802
19:55LA 5783 to Nantes leaves the gate
19 h 45 apart on the timetable
LA 5783 leaves 19 h 45 after QR 5523 arrives on the timetable: more than half a day, so not a connection we count.