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

Arrival Airport:

Distance from FSI to ALQ:
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- About this route
- FSI Airport Information
- ALQ Airport Information
- Facts about FSI
- Facts about ALQ
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to ALQ
- List of Nearest Airports to ALQ
- Map of Furthest Airports from ALQ
- List of Furthest Airports from ALQ
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:
IATA / ICAO Codes: | FSI / KFSI |
Airport Name: | Henry Post Army Airfield |
Location: | Fort Sill, Oklahoma, United States |
GPS Coordinates: | 34°38'58"N by 98°24'7"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from FSI |
More Information: | FSI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ALQ / SSLT |
Airport Names: |
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Location: | Alegrete, Rio Grande do Sul, Brazil |
GPS Coordinates: | 29°48'45"S by 55°53'31"W |
Area Served: | Alegrete |
Airport Type: | Public |
Elevation: | 459 feet (140 meters) |
# of Runways: | 1 |
View all routes: | Routes from ALQ |
More Information: | ALQ Maps & Info |
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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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.
Facts about Gaudêncio Machado Ramos Airport (ALQ):
- The closest airport to Gaudêncio Machado Ramos Airport (ALQ) is Artigas International Airport (ATI), which is located 55 miles (88 kilometers) SW of ALQ.
- 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.
- Gaudêncio Machado Ramos Airport (ALQ) currently has only 1 runway.
- Currently no scheduled flights operate at this airport.
- The airport is located 13 km from downtown Alegrete.
- 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.
- In addition to being known as "Gaudêncio Machado Ramos Airport", another name for ALQ is "Aeroporto Gaudêncio Machado Ramos".