Nonstop flight route between Fort Sill, Oklahoma, United States and Waterloo, Iowa, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to ALO:
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- About this route
- FSI Airport Information
- ALO Airport Information
- Facts about FSI
- Facts about ALO
- 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 ALO
- List of Nearest Airports to ALO
- Map of Furthest Airports from ALO
- List of Furthest Airports from ALO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Waterloo Regional Airport (Livingston Betsworth Field) (ALO), Waterloo, Iowa, United States would travel a Great Circle distance of 635 miles (or 1,022 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 Waterloo Regional Airport (Livingston Betsworth Field), 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: | ALO / KALO |
Airport Name: | Waterloo Regional Airport (Livingston Betsworth Field) |
Location: | Waterloo, Iowa, United States |
GPS Coordinates: | 42°33'24"N by 92°24'1"W |
Area Served: | Waterloo, Iowa |
Operator/Owner: | City of Waterloo |
Airport Type: | Public |
Elevation: | 873 feet (266 meters) |
# of Runways: | 3 |
View all routes: | Routes from ALO |
More Information: | ALO 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- Post Field served as a base for flight training for the Air Service.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
Facts about Waterloo Regional Airport (Livingston Betsworth Field) (ALO):
- Northwest Flight 335 landed without incident at the Waterloo Regional Airport on June 2, 2009, about an hour into its flight from Detroit to Los Angeles with 182 passengers and a flight crew of eight.
- The closest airport to Waterloo Regional Airport (Livingston Betsworth Field) (ALO) is Northeast Iowa Regional Airport (CCY), which is located 37 miles (60 kilometers) NNW of ALO.
- Waterloo Regional Airport (Livingston Betsworth Field) (ALO) has 3 runways.
- Because of Waterloo Regional Airport (Livingston Betsworth Field)'s relatively low elevation of 873 feet, planes can take off or land at Waterloo Regional Airport (Livingston Betsworth Field) 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.
- The furthest airport from Waterloo Regional Airport (Livingston Betsworth Field) (ALO) is Margaret River Airport (MGV), which is located 10,839 miles (17,443 kilometers) away in Margaret River, Western Australia, Australia.