Nonstop flight route between Fort Sill, Oklahoma, United States and Grosseto, Italy:
Departure Airport:

Arrival Airport:

Distance from FSI to GRS:
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- About this route
- FSI Airport Information
- GRS Airport Information
- Facts about FSI
- Facts about GRS
- 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 GRS
- List of Nearest Airports to GRS
- Map of Furthest Airports from GRS
- List of Furthest Airports from GRS
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Grosseto Airport (GRS), Grosseto, Italy would travel a Great Circle distance of 5,483 miles (or 8,824 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 large distance between Henry Post Army Airfield and Grosseto Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Henry Post Army Airfield and Grosseto Airport. You'll see that it will travel the same route of the red line on this map!
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: | GRS / LIRS |
Airport Names: |
|
Location: | Grosseto, Italy |
GPS Coordinates: | 42°45'34"N by 11°4'18"E |
Area Served: | Grosseto, Italy |
Operator/Owner: | Aeronautica Militare / Società di Esercizio dell'Aeroporto della Maremma S.p.A. (SEAM) |
Airport Type: | Military / Public |
Elevation: | 15 feet (5 meters) |
# of Runways: | 2 |
View all routes: | Routes from GRS |
More Information: | GRS Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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 was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
Facts about Grosseto Airport (GRS):
- The closest airport to Grosseto Airport (GRS) is Siena-Ampugnano Airport (SAY), which is located 36 miles (57 kilometers) NNE of GRS.
- Grosseto Airport (GRS) has 2 runways.
- The furthest airport from Grosseto Airport (GRS) is Chatham Islands (CHT), which is nearly antipodal to Grosseto Airport (meaning Grosseto Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,051 miles (19,395 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The airport resides at an elevation of 15 feet above mean sea level.
- In addition to being known as "Grosseto Airport", other names for GRS include "Aeroporto di Grosseto" and "Grosseto Airport".
- Because of Grosseto Airport's relatively low elevation of 15 feet, planes can take off or land at Grosseto 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.
- Grosseto Airport handled 4,382 passengers last year.