Nonstop flight route between Fort Sill, Oklahoma, United States and Okushiri, Okushiri Island, Hokkaido, Japan:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Okushiri Airport (OIR), Okushiri, Okushiri Island, Hokkaido, Japan would travel a Great Circle distance of 5,997 miles (or 9,651 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 Okushiri 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 Okushiri 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):

• 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 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.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.

Facts about Okushiri Airport (OIR):

• The furthest airport from Okushiri Airport (OIR) is Capitán de Corbeta Carlos A. Curbelo International Airport (PDP), which is located 11,508 miles (18,520 kilometers) away in Maldonado/Punta del Este, Maldonado, Uruguay.
• The closest airport to Okushiri Airport (OIR) is Hakodate Airport (HKD), which is located 74 miles (120 kilometers) ESE of OIR.
• Because of Okushiri Airport's relatively low elevation of 161 feet, planes can take off or land at Okushiri 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.
• Okushiri Airport (OIR) currently has only 1 runway.
• In addition to being known as "Okushiri Airport", other names for OIR include "奥尻空港" and "Okushiri Kūkō".