Nonstop flight route between Fort Sill, Oklahoma, United States and Hagåtña, Guam:
Departure Airport:

Arrival Airport:

Distance from FSI to GUM:
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- About this route
- FSI Airport Information
- GUM Airport Information
- Facts about FSI
- Facts about GUM
- 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 GUM
- List of Nearest Airports to GUM
- Map of Furthest Airports from GUM
- List of Furthest Airports from GUM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Guam International Airport (GUM), Hagåtña, Guam would travel a Great Circle distance of 7,130 miles (or 11,474 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 Guam International 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 Guam International 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: | GUM / PGUM |
Airport Names: |
|
Location: | Hagåtña, Guam |
GPS Coordinates: | 13°29'2"N by 144°47'49"E |
Area Served: | Guam |
Operator/Owner: | A.B. Won Pat International Airport Authority, Guam |
Airport Type: | Public |
Elevation: | 297 feet (91 meters) |
# of Runways: | 2 |
View all routes: | Routes from GUM |
More Information: | GUM Maps & Info |
Facts about Henry Post Army Airfield (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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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.
Facts about Guam International Airport (GUM):
- A new passenger terminal building was opened in 1982, and the current, much larger terminal building was opened in phases between 1996 and 1998.
- The old terminal served as the corporate headquarters of Continental Micronesia until late 2010.
- In addition to being known as "Guam International Airport", another name for GUM is "Antonio B. Won Pat International Airport".
- The TSA conducts security inspection for all departing passengers and all transit passengers not arriving from the States and the CNMI, which are already screened by TSA at their origins.
- The furthest airport from Guam International Airport (GUM) is Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho) (SSA), which is nearly antipodal to Guam International Airport (meaning Guam International Airport is almost on the exact opposite side of the Earth from Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho)), and is located 12,223 miles (19,671 kilometers) away in Salvador, Bahia, Brazil.
- Guam International Airport (GUM) has 2 runways.
- Guam International Airport handled 2,807,205 passengers last year.
- The closest airport to Guam International Airport (GUM) is Andersen Air Force Base (UAM), which is located only 11 miles (17 kilometers) NE of GUM.
- After the war, the USAAF used the airfield for fighter defense of the Marianas, until early 1947 and as a transport hub.
- Because of Guam International Airport's relatively low elevation of 297 feet, planes can take off or land at Guam International 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.