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):
- Graciosa Airport (GRW) currently has only 1 runway.
- 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.
- 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 closest airport to Graciosa Airport (GRW) is Pico Airport (PIX), which is located 43 miles (70 kilometers) SSW of GRW.
Facts about Henry Post Army Airfield (FSI):
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- 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.
- 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 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.