IB 405 then QR 4704 at Barcelona
Madrid → Barcelona → Porto
Timetable, Barcelona time
09:00IB 405 from Madrid at the gatealso LA 1520, LL 3005, VY 5023, AY 5585, BA 7127, QR 8070, AA 8548
08:35QR 4704 to Porto leaves the gate
23 h 35 apart on the timetable, overnight
QR 4704 leaves 23 h 35 after IB 405 arrives on the timetable: more than half a day, so not a connection we count.