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).
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.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 416 kg (918 pounds).
Frequent Flyer Miles Calculator
London (LHR) → Washington D.C. (IAD).