Flight Kempegowda International Airport departs from Bangalore Kempegowda International Airport at 04:35 and arrives at London Heathrow Airport at 10:45.
The flighttime is about 10h 40m. The distance travelled ("as the bird flies"): 8988 Km. So the average speed is roughly 843 Km.
There is an 4.5 hour time difference between Bangalore and London