IB 411 then QR 3545 at Barcelona
Madrid → Barcelona → Santiago de Compostela
Timetable, Barcelona time
12:45IB 411 from Madrid at the gatealso CX 1839, LL 3011, VY 5031, QR 5095, AV 6089, BA 7130, AA 8613
10:00QR 3545 to Santiago de Compostela leaves the gate
21 h 15 apart on the timetable, overnight
QR 3545 leaves 21 h 15 after IB 411 arrives on the timetable: more than half a day, so not a connection we count.