Nonstop flight route between Fort Sill, Oklahoma, United States and Chisana, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to CZN:
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- About this route
- FSI Airport Information
- CZN Airport Information
- Facts about FSI
- Facts about CZN
- 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 CZN
- List of Nearest Airports to CZN
- Map of Furthest Airports from CZN
- List of Furthest Airports from CZN
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Chisana Airport (CZN), Chisana, Alaska, United States would travel a Great Circle distance of 2,669 miles (or 4,296 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 large distance between Henry Post Army Airfield and Chisana Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Henry Post Army Airfield and Chisana Airport. You'll see that it will travel the same route of the red line on this map!
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: | CZN / |
Airport Name: | Chisana Airport |
Location: | Chisana, Alaska, United States |
GPS Coordinates: | 62°4'15"N by 142°2'53"W |
Area Served: | Chisana, Alaska |
Operator/Owner: | Alaska DOT&PF - Northern Region |
Airport Type: | Public |
Elevation: | 3318 feet (1,011 meters) |
# of Runways: | 1 |
View all routes: | Routes from CZN |
More Information: | CZN Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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 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.
- 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.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
Facts about Chisana Airport (CZN):
- The furthest airport from Chisana Airport (CZN) is Port Elizabeth International Airport (PLZ), which is located 10,422 miles (16,773 kilometers) away in Port Elizabeth, South Africa.
- Scheduled airline passenger service at this airport is subsidized by the United States Department of Transportation via the Essential Air Service program.
- The closest airport to Chisana Airport (CZN) is Beaver Creek Airport (YXQ), which is located 45 miles (72 kilometers) ENE of CZN.
- Chisana Airport (CZN) currently has only 1 runway.