The distance from Ronald Reagan Washington National Airport to Columbia, Maryland is:

40 miles / 64 km driving

29 miles / 47 km flying

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Distance from DCA to Columbia, MD

The total driving distance from DCA to Columbia, MD is 40 miles or 64 kilometers.

The total straight line flight distance from DCA to Columbia, MD is 29 miles.

This is equivalent to 47 kilometers or 25 nautical miles.

Your trip begins at Ronald Reagan Washington National Airport in Washington, District of Columbia. It ends in Columbia, Maryland.

Your flight direction from DCA to Columbia, MD is North (22 degrees from North).

The distance calculator helps you figure out how far it is to get from DCA to Columbia, MD. It does this by computing the straight line flying distance ("as the crow flies") and the driving distance if the route is drivable. It uses all this data to compute the total travel mileage.

Ronald Reagan Washington National Airport

City: Washington
State: District of Columbia
Zip code: 20001
Country: United States
Category: airports

Columbia, Maryland

City: Columbia
State: Maryland
Country: United States
Category: cities

Distance calculator

Travelmath helps you find distances based on actual road trip directions, or the straight line flight distance. You can get the distance between cities, airports, states, countries, or zip codes to figure out the best route to travel to your destination. Compare the results to the straight line distance to determine whether it's better to drive or fly. 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. You can also print out pages with a travel map.

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