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

Arrival Airport:

Distance from FSI to AAP:
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- About this route
- FSI Airport Information
- AAP Airport Information
- Facts about FSI
- Facts about AAP
- 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 AAP
- List of Nearest Airports to AAP
- Map of Furthest Airports from AAP
- List of Furthest Airports from AAP
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Andrau Airpark (AAP), Houston, Texas, United States would travel a Great Circle distance of 379 miles (or 609 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 Andrau Airpark, 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: | AAP / KAAP |
Airport Name: | Andrau Airpark |
Location: | Houston, Texas, United States |
GPS Coordinates: | 29°43'0"N by 95°34'59"W |
Area Served: | Houston, Texas |
Operator/Owner: | Closed |
Airport Type: | General Aviation |
Elevation: | 80 feet (24 meters) |
# of Runways: | 2 |
View all routes: | Routes from AAP |
More Information: | AAP Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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 end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- 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.
- 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 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 Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
Facts about Andrau Airpark (AAP):
- Andrau Airpark (AAP) has 2 runways.
- Andrau Airpark was a public use airport located in the Alief community of Houston, Texas, United States, formerly an unincorporated section of Harris County, from the late 1940s through 1998.
- Because of Andrau Airpark's relatively low elevation of 80 feet, planes can take off or land at Andrau Airpark 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 closest airport to Andrau Airpark (AAP) is Sugar Land Regional Airport (SGR), which is located only 8 miles (13 kilometers) SW of AAP.
- The furthest airport from Andrau Airpark (AAP) is Cocos (Keeling) Island Airport (CCK), which is located 10,987 miles (17,682 kilometers) away in Cocos Islands, Australia.
- The airport was closed on December 23, 1998 when a Houston real estate firm paid Andrau Airpark Inc., the airport's owners, 53 million dollars for the land.