Nonstop flight route between Fort Sill, Oklahoma, United States and Port Bailey, Kodiak Island Borough, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to KPY:
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- About this route
- FSI Airport Information
- KPY Airport Information
- Facts about FSI
- Facts about KPY
- 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 KPY
- List of Nearest Airports to KPY
- Map of Furthest Airports from KPY
- List of Furthest Airports from KPY
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Port Bailey Seaplane Base (KPY), Port Bailey, Kodiak Island Borough, Alaska, United States would travel a Great Circle distance of 2,952 miles (or 4,751 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 Port Bailey Seaplane Base, 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 Port Bailey Seaplane Base. 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: | KPY / |
Airport Name: | Port Bailey Seaplane Base |
Location: | Port Bailey, Kodiak Island Borough, Alaska, United States |
GPS Coordinates: | 57°55'47"N by 153°2'26"W |
Area Served: | Port Bailey, Alaska |
Operator/Owner: | Kadiak Fisheries |
Airport Type: | Public use |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from KPY |
More Information: | KPY Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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 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.
Facts about Port Bailey Seaplane Base (KPY):
- Scheduled passenger service to Kodiak, Alaska, is subsidized by the United States Department of Transportation via the Essential Air Service program.
- Because of Port Bailey Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Bailey Seaplane Base 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.
- Port Bailey Seaplane Base (KPY) currently has only 1 runway.
- The furthest airport from Port Bailey Seaplane Base (KPY) is Port Elizabeth International Airport (PLZ), which is located 10,781 miles (17,351 kilometers) away in Port Elizabeth, South Africa.
- The closest airport to Port Bailey Seaplane Base (KPY) is Port Lions Airport (ORI), which is located only 8 miles (13 kilometers) ESE of KPY.