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

Arrival Airport:

Distance from HPY to FSI:
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- About this route
- HPY Airport Information
- FSI Airport Information
- Facts about HPY
- Facts about FSI
- Map of Nearest Airports to HPY
- List of Nearest Airports to HPY
- Map of Furthest Airports from HPY
- List of Furthest Airports from HPY
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Baytown Airport (HPY), Baytown, Texas, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 392 miles (or 631 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 Baytown Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | HPY / KHPY |
Airport Name: | Baytown Airport |
Location: | Baytown, Texas, United States |
GPS Coordinates: | 29°47'9"N by 94°57'10"W |
Area Served: | Baytown, Texas |
Operator/Owner: | Raceco Inc. |
Airport Type: | Public |
Elevation: | 34 feet (10 meters) |
# of Runways: | 1 |
View all routes: | Routes from HPY |
More Information: | HPY Maps & Info |
Arrival 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 |
Facts about Baytown Airport (HPY):
- The furthest airport from Baytown Airport (HPY) is Cocos (Keeling) Island Airport (CCK), which is located 11,005 miles (17,711 kilometers) away in Cocos Islands, Australia.
- The closest airport to Baytown Airport (HPY) is Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD), which is located only 17 miles (28 kilometers) SW of HPY.
- Baytown Airport (HPY) currently has only 1 runway.
- Because of Baytown Airport's relatively low elevation of 34 feet, planes can take off or land at Baytown 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.
- Baytown Airport covers an area of 125 acres which contains one runway designated 14/32 with a 4,334 x 60 ft asphalt surface.
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.
- 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.
- 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.
- 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.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.