Nonstop flight route between Fort Sill, Oklahoma, United States and Lethem, Guyana:
Departure Airport:

Arrival Airport:

Distance from FSI to LTM:
Share this route:
Jump to:
- About this route
- FSI Airport Information
- LTM Airport Information
- Facts about FSI
- Facts about LTM
- 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 LTM
- List of Nearest Airports to LTM
- Map of Furthest Airports from LTM
- List of Furthest Airports from LTM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Lethem Airport (LTM), Lethem, Guyana would travel a Great Circle distance of 3,284 miles (or 5,286 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 Lethem 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 Lethem 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: | LTM / SYLT |
Airport Name: | Lethem Airport |
Location: | Lethem, Guyana |
GPS Coordinates: | 3°22'21"N by 59°47'21"W |
Area Served: | Lethem, Guyana, Upper Takutu-Upper Essequibo, Guyana |
Operator/Owner: | Government |
Airport Type: | Public |
Elevation: | 351 feet (107 meters) |
View all routes: | Routes from LTM |
More Information: | LTM 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
Facts about Lethem Airport (LTM):
- The furthest airport from Lethem Airport (LTM) is Andi Jemma Airport (MXB), which is nearly antipodal to Lethem Airport (meaning Lethem Airport is almost on the exact opposite side of the Earth from Andi Jemma Airport), and is located 12,380 miles (19,924 kilometers) away in Masamba, Indonesia.
- The closest airport to Lethem Airport (LTM) is Boa Vista-Atlas Brasil Cantanhede International Airport (BVB), which is located 72 miles (116 kilometers) WSW of LTM.
- Because of Lethem Airport's relatively low elevation of 351 feet, planes can take off or land at Lethem 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.