Nonstop flight route between Seongnam, South Korea and Tacoma, Washington, United States:

About this route:

A direct, nonstop flight between Seoul Air Base (SSN), Seongnam, South Korea and Gray Army Airfield (GRF), Tacoma, Washington, United States would travel a Great Circle distance of 5,187 miles (or 8,347 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 Gray Army Airfield, 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 Gray Army Airfield. 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 USAF designated the base at K-16 during the Korean War.
• 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 Seoul Air Show is held annually in this airfield.
• 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.
• The base is home to the ROKAF 15th Composite Wing.
• In addition to being known as "Seoul Air Base", another name for SSN is "서울공항".

Facts about Gray Army Airfield (GRF):

• After the Korean War, the 2d Aviation Company, of the 2d Infantry Division, which had been the first helicopter unit in Korea, returned to Fort Lewis with observation/spotter aircraft L-19 Bird Dogs, and L-20 Beavers, as well as H-23 Raven helicopters.
• In addition to being known as "Gray Army Airfield", another name for GRF is "(Joint Base Lewis-McChord)".
• In October 1921 Curtiss JN-4 “Jenny” biplanes flew from the Naval Station at Sand Point to a grass airfield at what was then called "Camp Lewis", located at a site just west of today’s Gray AAF.
• Gray Army Airfield (GRF) currently has only 1 runway.
• Since 2005 the field has been experiencing another major expansion.
• Because of Gray Army Airfield's relatively low elevation of 300 feet, planes can take off or land at Gray Army Airfield 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 Gray Army Airfield (GRF) is Tôlanaro Airport (FTU), which is located 10,809 miles (17,395 kilometers) away in Tôlanaro, Madagascar.
• World War II cantonment construction involved the demolition of some of the pre-1941 buildings.
• The Air Transport Command.
• The closest airport to Gray Army Airfield (GRF) is McChord Field/McChord AFB (TCM), which is located only 6 miles (10 kilometers) NE of GRF.