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

About this route:

A direct, nonstop flight between Ronald Reagan Washington National Airport (DCA), Arlington County, Virginia (near Washington, D.C.), United States and Seoul Air Base (SSN), Seongnam, South Korea 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 Ronald Reagan Washington National Airport and Seoul Air Base, 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 Seoul Air Base. 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):

• The runway layout has changed little, except for the 1956 closure of a fourth, east–west runway now used for taxiing and aircraft parking.
• Ronald Reagan Washington National Airport (DCA) has 3 runways.
• The airport is southwest of Washington, D.C.
• When visibility and ceiling are below minimums for the River Visual and southerly winds restrict northbound runway operations, aircraft fly an offset localizer or GPS approach to Runway 19, again involving a final turn moments before touchdown, or they fly a VOR or GPS approach to either of the shorter Runways 15 and 22, which are marginally long enough for airline jets.
• 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.
• 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.
• 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.
• In 2013, Reagan National Airport handled 20,415,085 passengers, which was a new record.
• Hoover Field, near the present site of the Pentagon, was the first major terminal to be developed in the Capital area, opening its doors in 1926.
• After the attacks, the airport was closed for several weeks, and security was tightened when it reopened.

Facts about Seoul Air Base (SSN):

• In addition to being known as "Seoul Air Base", another name for SSN is "서울공항".
• 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 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.
• The closest airport to Seoul Air Base (SSN) is Gimpo International Airport (GMP), which is located only 19 miles (31 kilometers) WNW of SSN.
• Seoul Air Base It is located in Seongnam city, right below Seoul.
• Seoul Air Base (SSN) has 2 runways.
• The USAF designated the base at K-16 during the Korean War.
• The US Army's 2nd Battalion, 2nd Aviation Regiment, 2nd Infantry Division operating Sikorsky UH-60 Blackhawks is based there.