Nonstop flight route between Fort Sill, Oklahoma, United States and Alegrete, Rio Grande do Sul, Brazil:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Gaudêncio Machado Ramos Airport (ALQ), Alegrete, Rio Grande do Sul, Brazil would travel a Great Circle distance of 5,245 miles (or 8,440 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 Gaudêncio Machado Ramos 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 Gaudêncio Machado Ramos 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):

• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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 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.
• 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 Gaudêncio Machado Ramos Airport (ALQ):

• The airport was built as a replacement to an older facility located closer to downtown which was then closed.
• Because of Gaudêncio Machado Ramos Airport's relatively low elevation of 459 feet, planes can take off or land at Gaudêncio Machado Ramos 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 furthest airport from Gaudêncio Machado Ramos Airport (ALQ) is Zhoushan Putuoshan Airport (HSN), which is nearly antipodal to Gaudêncio Machado Ramos Airport (meaning Gaudêncio Machado Ramos Airport is almost on the exact opposite side of the Earth from Zhoushan Putuoshan Airport), and is located 12,332 miles (19,846 kilometers) away in Zhoushan, Zhejiang, China.
• In addition to being known as "Gaudêncio Machado Ramos Airport", another name for ALQ is "Aeroporto Gaudêncio Machado Ramos".
• The closest airport to Gaudêncio Machado Ramos Airport (ALQ) is Artigas International Airport (ATI), which is located 55 miles (88 kilometers) SW of ALQ.
• Gaudêncio Machado Ramos Airport (ALQ) currently has only 1 runway.