Nonstop flight route between Fort Sill, Oklahoma, United States and Austin, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to EDC:
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- About this route
- FSI Airport Information
- EDC Airport Information
- Facts about FSI
- Facts about EDC
- 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 EDC
- List of Nearest Airports to EDC
- Map of Furthest Airports from EDC
- List of Furthest Airports from EDC
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Austin Executive Airport (EDC), Austin, Texas, United States would travel a Great Circle distance of 298 miles (or 479 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 Austin Executive 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: | EDC / KEDC |
Airport Name: | Austin Executive Airport |
Location: | Austin, Texas, United States |
GPS Coordinates: | 30°23'48"N by 97°34'23"W |
Area Served: | Austin, Texas |
Operator/Owner: | Travis County Field LLC |
Airport Type: | Public |
Elevation: | 620 feet (189 meters) |
# of Runways: | 2 |
View all routes: | Routes from EDC |
More Information: | EDC Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- Post Field served as a base for flight training for the Air Service.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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.
- 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.
Facts about Austin Executive Airport (EDC):
- The closest airport to Austin Executive Airport (EDC) is Austin–Bergstrom International Airport (AUS), which is located only 15 miles (24 kilometers) SSW of EDC.
- A different airport with a similar name was the Austin Executive Airpark, located near Parmer Lane and Interstate 35.
- Austin Executive Airport (EDC) has 2 runways.
- Because of Austin Executive Airport's relatively low elevation of 620 feet, planes can take off or land at Austin Executive 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.
- The furthest airport from Austin Executive Airport (EDC) is Sir Gaëtan Duval Airport (RRG), which is located 11,039 miles (17,765 kilometers) away in Rodrigues Island, Mauritius.
- For the 12-month period ending June 20, 2008, the airport had 2,700 general aviation aircraft operations, an average of 225 per month.