Nonstop flight route between Fort Sill, Oklahoma, United States and Yecheon, South Korea:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Yecheon Air Base (YEC), Yecheon, South Korea would travel a Great Circle distance of 6,667 miles (or 10,729 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 Henry Post Army Airfield and Yecheon 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 Henry Post Army Airfield and Yecheon 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 Henry Post Army Airfield (FSI):

• The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
• The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
• The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.

Facts about Yecheon Air Base (YEC):

• The closest airport to Yecheon Air Base (YEC) is Cheongju International Airport (CJJ), which is located 48 miles (77 kilometers) W of YEC.
• Because of Yecheon Air Base's relatively low elevation of 354 feet, planes can take off or land at Yecheon 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.
• Yecheon Air Base (YEC) currently has only 1 runway.
• The furthest airport from Yecheon Air Base (YEC) is Capitán de Corbeta Carlos A. Curbelo International Airport (PDP), which is nearly antipodal to Yecheon Air Base (meaning Yecheon Air Base is almost on the exact opposite side of the Earth from Capitán de Corbeta Carlos A. Curbelo International Airport), and is located 12,208 miles (19,646 kilometers) away in Maldonado/Punta del Este, Maldonado, Uruguay.