Nonstop flight route between Fort Sill, Oklahoma, United States and Elmira/Big Flats, New York, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to ELM:
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- About this route
- FSI Airport Information
- ELM Airport Information
- Facts about FSI
- Facts about ELM
- 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 ELM
- List of Nearest Airports to ELM
- Map of Furthest Airports from ELM
- List of Furthest Airports from ELM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Elmira/Corning Regional Airport (ELM), Elmira/Big Flats, New York, United States would travel a Great Circle distance of 1,270 miles (or 2,045 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 Elmira/Corning Regional 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: | ELM / KELM |
Airport Name: | Elmira/Corning Regional Airport |
Location: | Elmira/Big Flats, New York, United States |
GPS Coordinates: | 42°9'35"N by 76°53'30"W |
Area Served: | Elmira, New York, Corning, New York |
Operator/Owner: | County of Chemung |
Airport Type: | Public |
Elevation: | 954 feet (291 meters) |
# of Runways: | 3 |
View all routes: | Routes from ELM |
More Information: | ELM Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- 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.
- 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.
- 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 AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
Facts about Elmira/Corning Regional Airport (ELM):
- The furthest airport from Elmira/Corning Regional Airport (ELM) is Margaret River Airport (MGV), which is located 11,573 miles (18,625 kilometers) away in Margaret River, Western Australia, Australia.
- Mohawk/Allegheny/USAir flew to Elmira until 2001 when its affiliate took over.
- Elmira/Corning Regional Airport (ELM) has 3 runways.
- Elmira/Corning Regional Airport is a county-owned public airport in Chemung County, New York, seven miles northwest of Elmira and eight miles east of Corning.
- Because of Elmira/Corning Regional Airport's relatively low elevation of 954 feet, planes can take off or land at Elmira/Corning Regional 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 Elmira/Corning Regional Airport (ELM) is Ithaca Tompkins Regional Airport (ITH), which is located 32 miles (51 kilometers) NE of ELM.