Flight Heathrow Airport departs from London Heathrow Airport at 14:25 and arrives at Chicago O'Hare International Airport at 17:05.
The flighttime is about 8h 40m. The distance travelled ("as the bird flies"): 9726 Km. So the average speed is roughly 1122 Km.
There is an 6 hour time difference between London and Chicago
THB
