Nonstop flight route between Fort Sill, Oklahoma, United States and Altoona, Pennsylvania, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to AOO:
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- About this route
- FSI Airport Information
- AOO Airport Information
- Facts about FSI
- Facts about AOO
- 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 AOO
- List of Nearest Airports to AOO
- Map of Furthest Airports from AOO
- List of Furthest Airports from AOO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Altoona–Blair County Airport (AOO), Altoona, Pennsylvania, United States would travel a Great Circle distance of 1,165 miles (or 1,875 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 Altoona–Blair County 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: | AOO / KAOO |
Airport Name: | Altoona–Blair County Airport |
Location: | Altoona, Pennsylvania, United States |
GPS Coordinates: | 40°17'47"N by 78°19'11"W |
Area Served: | Altoona, Pennsylvania |
Operator/Owner: | Blair County Airport Authority |
Airport Type: | Public |
Elevation: | 1503 feet (458 meters) |
# of Runways: | 2 |
View all routes: | Routes from AOO |
More Information: | AOO Maps & Info |
Facts about Henry Post Army Airfield (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.
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
Facts about Altoona–Blair County Airport (AOO):
- Altoona–Blair County Airport has 46 small aircraft T-hangars that it rents to aircraft owners, while construction of more is under way.
- The closest airport to Altoona–Blair County Airport (AOO) is John Murtha Johnstown–Cambria County Airport (JST), which is located 27 miles (44 kilometers) W of AOO.
- Federal Aviation Administration records say the airport had 11,051 passenger boardings in calendar year 2008, 6,439 in 2009 and 4,378 in 2010.
- Altoona–Blair County Airport (AOO) has 2 runways.
- The furthest airport from Altoona–Blair County Airport (AOO) is Margaret River Airport (MGV), which is located 11,578 miles (18,633 kilometers) away in Margaret River, Western Australia, Australia.