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

Arrival Airport:

Distance from FSI to SUN:
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- About this route
- FSI Airport Information
- SUN Airport Information
- Facts about FSI
- Facts about SUN
- 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 SUN
- List of Nearest Airports to SUN
- Map of Furthest Airports from SUN
- List of Furthest Airports from SUN
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Friedman Memorial Airport (SUN), Hailey, Idaho, United States would travel a Great Circle distance of 1,046 miles (or 1,684 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 Friedman Memorial 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: | SUN / KSUN |
Airport Name: | Friedman Memorial Airport |
Location: | Hailey, Idaho, United States |
GPS Coordinates: | 43°30'14"N by 114°17'44"W |
Area Served: | Hailey, Ketchum, Sun Valley |
Operator/Owner: | City of Hailey |
Airport Type: | Public |
Elevation: | 5318 feet (1,621 meters) |
# of Runways: | 1 |
View all routes: | Routes from SUN |
More Information: | SUN Maps & Info |
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 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.
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- 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.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
Facts about Friedman Memorial Airport (SUN):
- Friedman Memorial Airport is a city-owned public-use airport located one nautical mile southeast of the central business district of Hailey, a city in Blaine County, Idaho, United States.
- Delta Air Lines is the dominant carrier at the airport via its Delta Connection service which was operated for many years by SkyWest Airlines with Embraer EMB-120 "Brasilia" turboprop aircraft.
- In the 1970s, the airport was served by Sun Valley Airlines using de Havilland Canada DHC-6 Twin Otter, Convair 440, Piper Navajo and other propeller-driven aircraft.
- Because of Friedman Memorial Airport's high elevation of 5,318 feet, planes must typically fly at a faster airspeed in order to takeoff or land at SUN. Combined with a high temperature, this could make SUN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Friedman Memorial Airport (SUN) is Pierrefonds Airport (ZSE), which is located 10,794 miles (17,372 kilometers) away in Saint-Pierre, Réunion.
- The closest airport to Friedman Memorial Airport (SUN) is Challis Airport (CHL), which is located 71 miles (114 kilometers) N of SUN.
- Friedman Memorial Airport (SUN) currently has only 1 runway.