Nonstop flight route between Koyuk, Alaska, United States and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Koyuk Alfred Adams Airport (KKA), Koyuk, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 3,287 miles (or 5,291 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 Koyuk Alfred Adams Airport and Henry Post 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 Koyuk Alfred Adams Airport and Henry Post 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 Koyuk Alfred Adams Airport (KKA):

• Koyuk Alfred Adams Airport (KKA) currently has only 1 runway.
• The furthest airport from Koyuk Alfred Adams Airport (KKA) is Cape Town International Airport (CPT), which is located 10,297 miles (16,571 kilometers) away in Cape Town, South Africa.
• The closest airport to Koyuk Alfred Adams Airport (KKA) is Haycock Airport (HAY), which is located only 18 miles (29 kilometers) N of KKA.
• Because of Koyuk Alfred Adams Airport's relatively low elevation of 154 feet, planes can take off or land at Koyuk Alfred Adams 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.

Facts about Henry Post Army Airfield (FSI):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• 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.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.