Nonstop flight route between Fort Sill, Oklahoma, United States and Coari, Amazonas, Brazil:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Coari Airport (CIZ), Coari, Amazonas, Brazil would travel a Great Circle distance of 3,526 miles (or 5,674 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 Coari 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 Coari 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):

• Post Field served as a base for flight training for the Air Service.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• 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 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.

Facts about Coari Airport (CIZ):

• Coari Airport (CIZ) currently has only 1 runway.
• In addition to being known as "Coari Airport", another name for CIZ is "Aeroporto de Coari".
• The furthest airport from Coari Airport (CIZ) is Nunukan Airport (NNX), which is nearly antipodal to Coari Airport (meaning Coari Airport is almost on the exact opposite side of the Earth from Nunukan Airport), and is located 12,382 miles (19,927 kilometers) away in Nunukan, East Kalimantan, Indonesia.
• The closest airport to Coari Airport (CIZ) is Tefé Airport (TFF), which is located 122 miles (196 kilometers) WNW of CIZ.
• Because of Coari Airport's relatively low elevation of 131 feet, planes can take off or land at Coari 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.