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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Tununak Airport (TNK), Tununak, Alaska, United States would travel a Great Circle distance of 3,396 miles (or 5,466 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 Tununak 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 Henry Post Army Airfield and Tununak 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 Henry Post Army Airfield (FSI):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.

Facts about Tununak Airport (TNK):

• Tununak Airport (TNK) currently has only 1 runway.
• Because of Tununak Airport's relatively low elevation of 14 feet, planes can take off or land at Tununak 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 Tununak Airport (TNK) is Toksook Bay Airport (OOK), which is located only 7 miles (11 kilometers) ESE of TNK.
• In addition to being known as "Tununak Airport", another name for TNK is "4KA".
• The furthest airport from Tununak Airport (TNK) is Cape Town International Airport (CPT), which is located 10,590 miles (17,043 kilometers) away in Cape Town, South Africa.
• Tununak Airport is a state-owned, public-use airport located one nautical mile southwest of the central business district of Tununak, in the Bethel Census Area of the U.S.
• Tununak Airport has one runway designated 8/26 with a gravel surface measuring 1,778 by 30 feet.