MS 767 then QR 3503 at Barcelona
Cairo → Barcelona → Santander
Timetable, Barcelona time
14:25MS 767 from Cairo at the gate
11:20QR 3503 to Santander leaves the gate
20 h 55 apart on the timetable, overnight
QR 3503 leaves 20 h 55 after MS 767 arrives on the timetable: more than half a day, so not a connection we count.