Air Miles Calculator

Distance between London (LHR) and Washington D.C. (IAD)

Flight distance from London to Washington D.C. (London Heathrow Airport – Washington Dulles International Airport) is 3677 miles / 5917 kilometers / 3195 nautical miles. Estimated flight time is 7 hours 27 minutes.

Map of flight path from London to Washington D.C..

Shortest flight path between London Heathrow Airport (LHR) and Washington Dulles International Airport (IAD).

How far is Washington D.C. from London?

There are several ways to calculate distances between London and Washington D.C.. Here are two common methods:

Vincenty's formula (applied above)
  • 3676.737 miles
  • 5917.134 kilometers
  • 3194.997 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 3667.203 miles
  • 5901.791 kilometers
  • 3186.712 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

Airport information


A London Heathrow Airport
City: London
Country: United Kingdom Flag of United Kingdom
IATA Code: LHR
ICAO Code: EGLL
Coordinates: 51°28′14″N, 0°27′42″W

B Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W

Time difference and current local times

The time difference between London and Washington D.C. is 5 hours. Washington D.C. is 5 hours behind London.

Time Difference

London

 GMT

Washington D.C.

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 416 kg (918 pounds).

Frequent Flyer Miles Calculator

London (LHR) → Washington D.C. (IAD).

Distance:
3677
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
3677

Round trip?