IB 2375 then QR 4704 at Barcelona
Pamplona → Barcelona → Porto
Timetable, Barcelona time
12:10IB 2375 from Pamplona at the gate
08:35QR 4704 to Porto leaves the gate
20 h 25 apart on the timetable, overnight
QR 4704 leaves 20 h 25 after IB 2375 arrives on the timetable: more than half a day, so not a connection we count.