QR 3785 then BA 479 at Barcelona
Tangier → Barcelona → London Heathrow
Timetable, Barcelona time
10:15QR 3785 from Tangier at the gate
13:35BA 479 to London Heathrow leaves the gate
3 h 20 apart on the timetable
The last days
QR 3785 and BA 479 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.