Nonstop flight route between East Hampton, New York, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from HTO to FSI:
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- About this route
- HTO Airport Information
- FSI Airport Information
- Facts about HTO
- Facts about FSI
- Map of Nearest Airports to HTO
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- Map of Furthest Airports from HTO
- List of Furthest Airports from HTO
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
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- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between East Hampton Airport (HTO), East Hampton, New York, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,486 miles (or 2,392 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 East Hampton 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: | HTO / KHTO |
Airport Name: | East Hampton Airport |
Location: | East Hampton, New York, United States |
GPS Coordinates: | 40°57'33"N by 72°15'6"W |
Area Served: | East Hampton, New York |
Airport Type: | Public |
Elevation: | 55 feet (17 meters) |
# of Runways: | 2 |
View all routes: | Routes from HTO |
More Information: | HTO 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 East Hampton Airport (HTO):
- East Hampton Airport (HTO) has 2 runways.
- Trump Air provided regularly scheduled helicopter service in the late 1980s and early 1990s.
- The furthest airport from East Hampton Airport (HTO) is Margaret River Airport (MGV), which is located 11,806 miles (19,000 kilometers) away in Margaret River, Western Australia, Australia.
- Because of East Hampton Airport's relatively low elevation of 55 feet, planes can take off or land at East Hampton 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 East Hampton Airport (HTO) is Montauk Airport (MTP), which is located only 19 miles (31 kilometers) ENE of HTO.
- There is considerable debate about the airport which is prominently used by private jets visiting the Hamptons.
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.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.