The flight distance from Washington Dulles International Airport to Washington, District of Columbia is:

23 miles / 36 km

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Flight path from IAD to Washington, DC

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Distance from IAD to Washington, DC

The total distance from IAD to Washington, DC is 23 miles.

This is equivalent to 36 kilometers or 20 nautical miles.

Your trip begins at Washington Dulles International Airport in Dulles, Virginia.
It ends in Washington, District of Columbia.

Your flight direction from IAD to Washington, DC is East (100 degrees from North).

The distance calculator helps you figure out how far it is to fly from IAD to Washington, DC. It does this by computing the straight line flying distance ("as the crow flies"). It uses the great circle formula to compute the total travel mileage.

Washington Dulles International Airport

IATA: IAD
ICAO: KIAD
FAA: IAD
City: Dulles
State: Virginia
Zip code: 20166
Country: United States
Category: airports

Washington, District of Columbia

City: Washington
State: District of Columbia
Country: United States
Category: cities

Flight distance calculator

Travelmath provides an online flight distance calculator to get the distance between cities. You can also compare all types of locations including airports, cities, states, countries, or zip codes to find the distance between any two points. The database uses the latitude and longitude of each location to calculate distance using the great circle distance formula. The calculation is done using the Vincenty algorithm and the WGS84 ellipsoid model of the Earth, which is the same one used by most GPS receivers. This gives you the flying distance "as the crow flies." Find your flight distances quickly to estimate the number of frequent flyer miles you'll accumulate. Or ask how far is it between cities to solve your homework problems. You can lookup U.S. cities, or expand your search to get the world distance for international trips.