| London Heathrow (LHR): approximate driving time is 45 minutes. Driving directions from Heathrow Airport: When leaving the airport take the exit for the M4 at Junction 15 on the M25 going towards central London. The M4 becomes the A4, which eventually becomes Cromwell Rd. At the junction with Queen's Gate turn left and John Howard Hotel is about 500 meters to the left. |