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

Arrival Airport:

Distance from GLS to FSI:
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- About this route
- GLS Airport Information
- FSI Airport Information
- Facts about GLS
- Facts about FSI
- Map of Nearest Airports to GLS
- List of Nearest Airports to GLS
- Map of Furthest Airports from GLS
- List of Furthest Airports from GLS
- Map of Nearest Airports to FSI
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About this route:
A direct, nonstop flight between Scholes International Airport at Galveston (GLS), Galveston, Texas, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 426 miles (or 686 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 Scholes International Airport at Galveston 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: | GLS / KGLS |
Airport Names: |
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Location: | Galveston, Texas, United States |
GPS Coordinates: | 29°15'55"N by 94°51'38"W |
Area Served: | Galveston, Texas |
Operator/Owner: | City of Galveston |
Airport Type: | Public |
Elevation: | 6 feet (2 meters) |
# of Runways: | 2 |
View all routes: | Routes from GLS |
More Information: | GLS 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 Scholes International Airport at Galveston (GLS):
- Scholes International Airport at Galveston (GLS) has 2 runways.
- Because of Scholes International Airport at Galveston's relatively low elevation of 6 feet, planes can take off or land at Scholes International Airport at Galveston 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 Scholes International Airport at Galveston (GLS) is Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD), which is located 30 miles (48 kilometers) NW of GLS.
- Scholes International Airport covers an area of 966 acres at an elevation of 6 feet above mean sea level.
- The Field was primarily used for replacement crew gunnery training by the 407th Fighter-Bomber Group, with targets being towed to the gunnery range at nearby Oyster Bay.
- The furthest airport from Scholes International Airport at Galveston (GLS) is Cocos (Keeling) Island Airport (CCK), which is located 11,038 miles (17,764 kilometers) away in Cocos Islands, Australia.
- It was officially deactivated on November 15, 1945, with ownership reverting to the City of Galveston.
- Of the 220+ aircraft based at GLS, 50+ are helicopters belonging to Bristow, Era, PHI and other oil industry vendors.
- In addition to being known as "Scholes International Airport at Galveston", another name for GLS is "(former Galveston Army Air Field)".
Facts about Henry Post Army Airfield (FSI):
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Post Field served as a base for flight training for the Air Service.
- 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 was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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.
- 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.
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.