Nonstop flight route between Idaho Falls, Idaho, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from IDA to FSI:
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- About this route
- IDA Airport Information
- FSI Airport Information
- Facts about IDA
- Facts about FSI
- Map of Nearest Airports to IDA
- List of Nearest Airports to IDA
- Map of Furthest Airports from IDA
- List of Furthest Airports from IDA
- 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 Idaho Falls Regional Airport (IDA), Idaho Falls, Idaho, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 953 miles (or 1,534 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 Idaho Falls Regional 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: | IDA / KIDA |
Airport Names: |
|
Location: | Idaho Falls, Idaho, United States |
GPS Coordinates: | 43°30'48"N by 112°4'14"W |
Area Served: | Idaho Falls, Idaho |
Operator/Owner: | City of Idaho Falls |
Airport Type: | Public |
Elevation: | 4744 feet (1,446 meters) |
# of Runways: | 2 |
View all routes: | Routes from IDA |
More Information: | IDA 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 Idaho Falls Regional Airport (IDA):
- The 2013 Federal sequester will result in the closure of the airport's control tower and will require pilots to rely on air traffic controllers from other area airports.
- Idaho Falls Regional Airport is a city owned, public use airport located two nautical miles northwest of the central business district of Idaho Falls, a city in Bonneville County, Idaho, United States.
- Idaho Falls Regional Airport covers an area of 866 acres at an elevation of 4,744 feet above mean sea level.
- Idaho Falls Regional Airport (IDA) has 2 runways.
- In addition to being known as "Idaho Falls Regional Airport", another name for IDA is "Fanning Field".
- The airport has struggled to maintain a restaurant operator in the past.
- The closest airport to Idaho Falls Regional Airport (IDA) is Dubois Municipal Airport (DBS), which is located 45 miles (73 kilometers) N of IDA.
- The furthest airport from Idaho Falls Regional Airport (IDA) is Sir Gaëtan Duval Airport (RRG), which is located 10,774 miles (17,339 kilometers) away in Rodrigues Island, Mauritius.
- Because of Idaho Falls Regional Airport's high elevation of 4,744 feet, planes must typically fly at a faster airspeed in order to takeoff or land at IDA. Combined with a high temperature, this could make IDA a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
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 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.
- 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.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.