Nonstop flight route between Green Bay, Wisconsin, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from GRB to FSI:
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- About this route
- GRB Airport Information
- FSI Airport Information
- Facts about GRB
- Facts about FSI
- Map of Nearest Airports to GRB
- List of Nearest Airports to GRB
- Map of Furthest Airports from GRB
- List of Furthest Airports from GRB
- 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 Austin Straubel International Airport (GRB), Green Bay, Wisconsin, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 871 miles (or 1,402 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 Austin Straubel International 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: | GRB / KGRB |
Airport Name: | Austin Straubel International Airport |
Location: | Green Bay, Wisconsin, United States |
GPS Coordinates: | 44°29'4"N by 88°7'46"W |
Area Served: | Green Bay, Wisconsin |
Operator/Owner: | Brown County |
Airport Type: | Public |
Elevation: | 695 feet (212 meters) |
# of Runways: | 2 |
View all routes: | Routes from GRB |
More Information: | GRB 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 Austin Straubel International Airport (GRB):
- The closest airport to Austin Straubel International Airport (GRB) is Outagamie County Regional Airport (ATW), which is located 25 miles (40 kilometers) SW of GRB.
- Because of Austin Straubel International Airport's relatively low elevation of 695 feet, planes can take off or land at Austin Straubel International 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.
- Austin Straubel International Airport (GRB) has 2 runways.
- The furthest airport from Austin Straubel International Airport (GRB) is Margaret River Airport (MGV), which is located 11,003 miles (17,707 kilometers) away in Margaret River, Western Australia, Australia.
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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.