Nonstop flight route between Graciosa Island, Azores, Portugal and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from GRW to FSI:
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- About this route
- GRW Airport Information
- FSI Airport Information
- Facts about GRW
- Facts about FSI
- Map of Nearest Airports to GRW
- List of Nearest Airports to GRW
- Map of Furthest Airports from GRW
- List of Furthest Airports from GRW
- 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 Graciosa Airport (GRW), Graciosa Island, Azores, Portugal and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 3,803 miles (or 6,120 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 Graciosa Airport and Henry Post Army Airfield, 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 Graciosa Airport and Henry Post Army Airfield. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | GRW / LPGR |
Airport Name: | Graciosa Airport |
Location: | Graciosa Island, Azores, Portugal |
GPS Coordinates: | 39°5'33"N by 28°1'42"W |
Operator/Owner: | ANA – Aeroportos de Portugal, SA |
Airport Type: | Public |
Elevation: | 85 feet (26 meters) |
# of Runways: | 1 |
View all routes: | Routes from GRW |
More Information: | GRW 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 Graciosa Airport (GRW):
- The closest airport to Graciosa Airport (GRW) is Pico Airport (PIX), which is located 43 miles (70 kilometers) SSW of GRW.
- Graciosa Airport (GRW) currently has only 1 runway.
- Because of Graciosa Airport's relatively low elevation of 85 feet, planes can take off or land at Graciosa 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.
- The furthest airport from Graciosa Airport (GRW) is Merimbula Airport (MIM), which is nearly antipodal to Graciosa Airport (meaning Graciosa Airport is almost on the exact opposite side of the Earth from Merimbula Airport), and is located 12,248 miles (19,712 kilometers) away in Merimbula, New South Wales, Australia.
Facts about Henry Post Army Airfield (FSI):
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.