BA 669 then VY 7673 at Heathrow
Marrakesh → London → Bilbao
Timetable, London time
19:50BA 669 from Marrakesh at the gate
18:50VY 7673 to Bilbao leaves the gate
23 h apart on the timetable, overnight
VY 7673 leaves 23 h after BA 669 arrives on the timetable: more than half a day, so not a connection we count.