Flight Hartsfield Jackson International Airport departs from Atlanta Hartsfield Jackson International Airport at 22:25 and arrives at London Heathrow Airport at 11:40.
The flighttime is about 8h 15m. The distance travelled ("as the bird flies"): 9366 Km. So the average speed is roughly 1135 Km.
There is an 5 hour time difference between Atlanta and London
