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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Kalbarri Airport (KAX), Kalbarri, Western Australia, Australia would travel a Great Circle distance of 10,456 miles (or 16,828 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 Kalbarri 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 Kalbarri 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 is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
• 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 sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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.
• Post Field served as a base for flight training for the Air Service.
• 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.
• 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.

Facts about Kalbarri Airport (KAX):

• The closest airport to Kalbarri Airport (KAX) is Geraldton Airport (GET), which is located 81 miles (130 kilometers) SSE of KAX.
• Kalbarri Airport (KAX) currently has only 1 runway.
• The furthest airport from Kalbarri Airport (KAX) is L.F. Wade International Airport (BDA), which is nearly antipodal to Kalbarri Airport (meaning Kalbarri Airport is almost on the exact opposite side of the Earth from L.F. Wade International Airport), and is located 12,108 miles (19,486 kilometers) away in Ferry Reach (near Hamilton), Bermuda.
• Because of Kalbarri Airport's relatively low elevation of 515 feet, planes can take off or land at Kalbarri 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.