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

About this route:

A direct, nonstop flight between Tununak Airport (TNK), Tununak, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, 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 Tununak 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 Tununak 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 Tununak Airport (TNK):

• Tununak Airport (TNK) currently has only 1 runway.
• 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.
• In addition to being known as "Tununak Airport", another name for TNK is "4KA".
• As per Federal Aviation Administration records, this airport had 1,809 commercial passenger boardings in calendar year 2008, a decrease of 9.6% from the 2,001 enplanements in 2007.
• 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.

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.
• 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.
• In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.