3O 375 then QR 3550 at Barcelona
Nador → Barcelona → Seville
Timetable, Barcelona time
20:103O 375 from Nador at the gate
11:45QR 3550 to Seville leaves the gate
15 h 35 apart on the timetable, overnight
QR 3550 leaves 15 h 35 after 3O 375 arrives on the timetable: more than half a day, so not a connection we count.