Nonstop flight route between Gustavus, Alaska, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from GST to FSI:
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- About this route
- GST Airport Information
- FSI Airport Information
- Facts about GST
- Facts about FSI
- Map of Nearest Airports to GST
- List of Nearest Airports to GST
- Map of Furthest Airports from GST
- List of Furthest Airports from GST
- 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 Gustavus Airport (GST), Gustavus, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 2,363 miles (or 3,804 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 Gustavus 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: | GST / PAGS |
Airport Name: | Gustavus Airport |
Location: | Gustavus, Alaska, United States |
GPS Coordinates: | 58°25'31"N by 135°42'27"W |
Area Served: | Gustavus, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Southeastern Region |
Airport Type: | Public |
Elevation: | 35 feet (11 meters) |
# of Runways: | 2 |
View all routes: | Routes from GST |
More Information: | GST 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 Gustavus Airport (GST):
- Because of Gustavus Airport's relatively low elevation of 35 feet, planes can take off or land at Gustavus 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.
- As per Federal Aviation Administration records, the airport had 11,828 passenger boardings in calendar year 2008, 8,822 enplanements in 2009, and 9,996 in 2010.
- Gustavus Airport covers an area of 1,821 acres at an elevation of 35 feet above mean sea level.
- Gustavus Airport (GST) has 2 runways.
- The closest airport to Gustavus Airport (GST) is Excursion Inlet Seaplane Base (EXI), which is located only 9 miles (15 kilometers) E of GST.
- The furthest airport from Gustavus Airport (GST) is Port Elizabeth International Airport (PLZ), which is located 10,541 miles (16,964 kilometers) away in Port Elizabeth, South Africa.
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.
- 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 (FSI) currently has only 1 runway.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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.