Map of flight path from Washington D.C. to London.
Shortest flight path between Washington Dulles International Airport (IAD) and London Heathrow Airport (LHR).
How far is London from Washington D.C.?
There are several ways to calculate distances between Washington D.C. and London. 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 Washington D.C. and London is 5 hours. London is 5 hours ahead of Washington D.C..
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 422 kg (931 pounds).
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → London (LHR).