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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Amaury Feitosa Tomaz Airport (ERN), Eirunepe, Amazonas, Brazil would travel a Great Circle distance of 3,405 miles (or 5,481 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 Amaury Feitosa Tomaz 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 Amaury Feitosa Tomaz 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 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.
• 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.
• 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.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• 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 Amaury Feitosa Tomaz Airport (ERN):

• Because of Amaury Feitosa Tomaz Airport's relatively low elevation of 412 feet, planes can take off or land at Amaury Feitosa Tomaz 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 Amaury Feitosa Tomaz Airport (ERN) is Tabatinga International Airport (TBT), which is located 165 miles (265 kilometers) N of ERN.
• The furthest airport from Amaury Feitosa Tomaz Airport (ERN) is Ranai Airport (NTX), which is nearly antipodal to Amaury Feitosa Tomaz Airport (meaning Amaury Feitosa Tomaz Airport is almost on the exact opposite side of the Earth from Ranai Airport), and is located 12,214 miles (19,656 kilometers) away in Natuna, Riau Islands, Indonesia.
• In addition to being known as "Amaury Feitosa Tomaz Airport", another name for ERN is "Aeroporto Amaury Feitosa Tomaz".
• Amaury Feitosa Tomaz Airport (ERN) currently has only 1 runway.