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

Arrival Airport:

Distance from FSI to HTO:
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- About this route
- FSI Airport Information
- HTO Airport Information
- Facts about FSI
- Facts about HTO
- 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 HTO
- List of Nearest Airports to HTO
- Map of Furthest Airports from HTO
- List of Furthest Airports from HTO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and East Hampton Airport (HTO), East Hampton, New York, 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 Henry Post Army Airfield and East Hampton Airport, the route shown on this map most likely still appears to be a straight line.
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: | 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 |
Facts about Henry Post Army Airfield (FSI):
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- 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.
- 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.
- 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 East Hampton Airport (HTO):
- East Hampton Airport (HTO) has 2 runways.
- The closest airport to East Hampton Airport (HTO) is Montauk Airport (MTP), which is located only 19 miles (31 kilometers) ENE of HTO.
- East Hampton Airport is a public use airport located three nautical miles west of East Hampton, a village in the Town of East Hampton, Suffolk County, New York, United States.
- Cape Air considered launching service to East Hampton Airport Summer 2012 from Westchester County Airport or Boston Logan Airport.
- 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.
- The PBS children's television show It's a Big Big World produced by Mitchell Kriegman is produced at Wainscott Studios which is the industrial park associated with the airport.
- 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.