Nonstop flight route between Fort Sill, Oklahoma, United States and Santarém, Pará, Brazil:
Departure Airport:

Arrival Airport:

Distance from FSI to STM:
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- About this route
- FSI Airport Information
- STM Airport Information
- Facts about FSI
- Facts about STM
- 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 STM
- List of Nearest Airports to STM
- Map of Furthest Airports from STM
- List of Furthest Airports from STM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Santarém–Maestro Wilson Fonseca Airport (STM), Santarém, Pará, Brazil would travel a Great Circle distance of 3,813 miles (or 6,136 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 Santarém–Maestro Wilson Fonseca 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 Santarém–Maestro Wilson Fonseca 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: | STM / SBSN |
Airport Names: |
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Location: | Santarém, Pará, Brazil |
GPS Coordinates: | 2°25'28"S by 54°47'8"W |
Area Served: | Santarém |
Operator/Owner: | Infraero |
Airport Type: | Public |
Elevation: | 198 feet (60 meters) |
# of Runways: | 1 |
View all routes: | Routes from STM |
More Information: | STM Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- 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 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 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.
- Post Field served as a base for flight training for the Air Service.
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
Facts about Santarém–Maestro Wilson Fonseca Airport (STM):
- The airport is located 15 km from downtown Santarém.
- The closest airport to Santarém–Maestro Wilson Fonseca Airport (STM) is Porto de Trombetas Airport (TMT), which is located 129 miles (208 kilometers) WNW of STM.
- The furthest airport from Santarém–Maestro Wilson Fonseca Airport (STM) is Sam Ratulangi International Airport (SRA) (MDC), which is nearly antipodal to Santarém–Maestro Wilson Fonseca Airport (meaning Santarém–Maestro Wilson Fonseca Airport is almost on the exact opposite side of the Earth from Sam Ratulangi International Airport (SRA)), and is located 12,373 miles (19,913 kilometers) away in Manado, Indonesia.
- Because of Santarém–Maestro Wilson Fonseca Airport's relatively low elevation of 198 feet, planes can take off or land at Santarém–Maestro Wilson Fonseca 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.
- Santarém–Maestro Wilson Fonseca Airport handled 487,585 passengers last year.
- In addition to being known as "Santarém–Maestro Wilson Fonseca Airport", another name for STM is "Aeroporto de Santarém–Maestro Wilson Fonseca".
- Santarém–Maestro Wilson Fonseca Airport (STM) currently has only 1 runway.