VY 677 then QR 3511 at Barcelona
Nice → Barcelona → Santiago de Compostela
Timetable, Barcelona time
03:20VY 677 from Nice at the gate
16:00QR 3511 to Santiago de Compostela leaves the gate
12 h 40 apart on the timetable
QR 3511 leaves 12 h 40 after VY 677 arrives on the timetable: more than half a day, so not a connection we count.