Flight International Airport departs from Doha International Airport at 07:30 and arrives at London Heathrow Airport at 12:10.
The flighttime is about 7h 40m. The distance travelled ("as the bird flies"): 6286 Km. So the average speed is roughly 820 Km.
There is an 3 hour time difference between Doha and London
The best day to arrive at Doha is Sunday and it would be best to avoid Saturday, as prices are on average 50.21% higher than on Sunday. (Average prices, based on 495159 datapoints.)
We have a lot more statistics for flights BA 122 and between Doha and London.
