Nonstop flight route between Arlington County, Virginia (near Washington, D.C.), United States and Roskilde (near Copenhagen), Denmark:

About this route:

A direct, nonstop flight between Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States and Roskilde Airport (RKE), Roskilde (near Copenhagen), Denmark would travel a Great Circle distance of 4,035 miles (or 6,494 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Ronald Reagan Washington National Airport and Roskilde Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Ronald Reagan Washington National Airport and Roskilde Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Ronald Reagan Washington National Airport (DCA):

• Given Reagan National Airport's proximity to the city and high-security facilities, Reagan National has extra security precautions required by the Washington Air Defense Identification Zone that have been in place since the airport began operations.
• The closest airport to Ronald Reagan Washington National Airport (DCA) is Bolling Air Force Base (BOF), which is located only 1 miles (2 kilometers) ESE of DCA.
• Because of Ronald Reagan Washington National Airport's relatively low elevation of 15 feet, planes can take off or land at Ronald Reagan Washington National Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• Ronald Reagan Washington National Airport (DCA) has 3 runways.
• Reagan National Airport has noise restrictions that are some of the most restrictive in the country.
• The furthest airport from Ronald Reagan Washington National Airport (DCA) is Margaret River Airport (MGV), which is located 11,682 miles (18,800 kilometers) away in Margaret River, Western Australia, Australia.

Facts about Roskilde Airport (RKE):

• The closest airport to Roskilde Airport (RKE) is Copenhagen Airport, Kastrup (CPH), which is located 21 miles (33 kilometers) E of RKE.
• The furthest airport from Roskilde Airport (RKE) is Chatham Islands (CHT), which is located 11,539 miles (18,570 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In addition to being known as "Roskilde Airport", other names for RKE include "Københavns Lufthavn, Roskilde" and "Copenhagen Airport, Roskilde".
• Because of Roskilde Airport's relatively low elevation of 146 feet, planes can take off or land at Roskilde Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• Roskilde Airport (RKE) has 2 runways.
• Roskilde Airport is planning an expansion of the runways and airport facilities to receive regular flights of low-cost international and charter operators, including aircraft types of Boeing 737 and Airbus A320-family sizes.
• Roskilde Airport, officially known as Copenhagen Airport, Roskilde, is located 4 nautical miles southeast of Roskilde near the town Tune.