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

Arrival Airport:

Distance from FSI to IAN:
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- About this route
- FSI Airport Information
- IAN Airport Information
- Facts about FSI
- Facts about IAN
- 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 IAN
- List of Nearest Airports to IAN
- Map of Furthest Airports from IAN
- List of Furthest Airports from IAN
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Bob Baker Memorial Airport (IAN), Kiana, Alaska, United States would travel a Great Circle distance of 3,290 miles (or 5,294 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 Bob Baker Memorial 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 Bob Baker Memorial 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: | IAN / PAIK |
Airport Name: | Bob Baker Memorial Airport |
Location: | Kiana, Alaska, United States |
GPS Coordinates: | 66°58'32"N by 160°26'12"W |
Operator/Owner: | State of Alaska DOT&PF - Northern Region |
Airport Type: | Public |
Elevation: | 166 feet (51 meters) |
# of Runways: | 1 |
View all routes: | Routes from IAN |
More Information: | IAN Maps & Info |
Facts about Henry Post Army Airfield (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.
- 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 is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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 Bob Baker Memorial Airport (IAN):
- The furthest airport from Bob Baker Memorial Airport (IAN) is Teniente Rodolfo Marsh Airport (TNM), which is located 10,242 miles (16,484 kilometers) away in Villa Las Estrellas, Antarctica.
- The closest airport to Bob Baker Memorial Airport (IAN) is Robert (Bob) Curtis Memorial Airport (ORV), which is located only 19 miles (31 kilometers) SW of IAN.
- Because of Bob Baker Memorial Airport's relatively low elevation of 166 feet, planes can take off or land at Bob Baker Memorial 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.
- Bob Baker Memorial Airport (IAN) currently has only 1 runway.