Nonstop flight route between Fort Sill, Oklahoma, United States and Argyle, Western Australia, Australia:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Argyle Airport (GYL), Argyle, Western Australia, Australia would travel a Great Circle distance of 9,298 miles (or 14,964 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 Argyle 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 Argyle 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 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.
• With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• 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.
• 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.
• 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 Argyle Airport (GYL):

• The furthest airport from Argyle Airport (GYL) is Grantley Adams International Airport (BGI), which is located 11,852 miles (19,074 kilometers) away in Bridgetown, Barbados.
• Argyle Airport (GYL) currently has only 1 runway.
• The closest airport to Argyle Airport (GYL) is Argyle Downs Airport (AGY), which is located 28 miles (45 kilometers) NE of GYL.
• Because of Argyle Airport's relatively low elevation of 522 feet, planes can take off or land at Argyle 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.