Nonstop flight route between Guantánamo, Cuba and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from GAO to FSI:
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- About this route
- GAO Airport Information
- FSI Airport Information
- Facts about GAO
- Facts about FSI
- Map of Nearest Airports to GAO
- List of Nearest Airports to GAO
- Map of Furthest Airports from GAO
- List of Furthest Airports from GAO
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Mariana Grajales Airport (GAO), Guantánamo, Cuba and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,738 miles (or 2,797 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 relatively short distance between Mariana Grajales Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | GAO / MUGT |
Airport Name: | Mariana Grajales Airport |
Location: | Guantánamo, Cuba |
GPS Coordinates: | 20°5'7"N by 75°9'29"W |
Area Served: | Guantánamo, Cuba |
Airport Type: | Public |
Elevation: | 56 feet (17 meters) |
# of Runways: | 1 |
View all routes: | Routes from GAO |
More Information: | GAO Maps & Info |
Arrival 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 |
Facts about Mariana Grajales Airport (GAO):
- Because of Mariana Grajales Airport's relatively low elevation of 56 feet, planes can take off or land at Mariana Grajales 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 Mariana Grajales Airport (GAO) is United States Naval Station Guantanamo Bay (NBW), which is located only 13 miles (21 kilometers) S of GAO.
- Mariana Grajales Airport (GAO) currently has only 1 runway.
- The furthest airport from Mariana Grajales Airport (GAO) is RAAF Learmonth (LEA), which is located 11,823 miles (19,027 kilometers) away in Exmouth, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.