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):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- 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.