Nonstop flight route between Seongnam, South Korea and Arlington County, Virginia (near Washington, D.C.), United States:

About this route:

A direct, nonstop flight between Seoul Air Base (SSN), Seongnam, South Korea and Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States would travel a Great Circle distance of 6,946 miles (or 11,178 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 Seoul Air Base and Ronald Reagan Washington National 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 Seoul Air Base and Ronald Reagan Washington National 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 Seoul Air Base (SSN):

• The US Army's 2nd Battalion, 2nd Aviation Regiment, 2nd Infantry Division operating Sikorsky UH-60 Blackhawks is based there.
• The furthest airport from Seoul Air Base (SSN) is Capitán de Corbeta Carlos A. Curbelo International Airport (PDP), which is nearly antipodal to Seoul Air Base (meaning Seoul Air Base is almost on the exact opposite side of the Earth from Capitán de Corbeta Carlos A. Curbelo International Airport), and is located 12,220 miles (19,665 kilometers) away in Maldonado/Punta del Este, Maldonado, Uruguay.
• Seoul Air Base (SSN) has 2 runways.
• Because of Seoul Air Base's relatively low elevation of 92 feet, planes can take off or land at Seoul Air Base 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.
• The closest airport to Seoul Air Base (SSN) is Gimpo International Airport (GMP), which is located only 19 miles (31 kilometers) WNW of SSN.
• In addition to being known as "Seoul Air Base", another name for SSN is "서울공항".

Facts about Ronald Reagan Washington National Airport (DCA):

• Ronald Reagan Washington National Airport (DCA) has 3 runways.
• Prior to the September 11 attacks in 2001, the notable security measure was the southbound approach into the airport.
• Taxicab services are available at the Ground Transportation area of all terminal buildings.
• 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.
• Reagan National Airport is subject to a federally mandated perimeter limitation and may not accommodate nonstop flights to or from cities beyond 1,250-statute-mile, with limited exceptions.
• 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.
• 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.
• Reagan National is a hub for US Airways, Reagan National's largest carrier.
• 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.
• Service to the airport's Metro station began in 1977.
• Reagan National only has United States immigration and customs facilities for corporate jet traffic.