Nonstop flight route between Fort Sill, Oklahoma, United States and Boigu Island, Queensland, Australia:
Departure Airport:

Arrival Airport:

Distance from FSI to GIC:
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- About this route
- FSI Airport Information
- GIC Airport Information
- Facts about FSI
- Facts about GIC
- 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 GIC
- List of Nearest Airports to GIC
- Map of Furthest Airports from GIC
- List of Furthest Airports from GIC
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Boigu Island Airport (GIC), Boigu Island, Queensland, Australia would travel a Great Circle distance of 8,244 miles (or 13,267 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 Boigu Island 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 Boigu Island 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: | GIC / YBOI |
Airport Name: | Boigu Island Airport |
Location: | Boigu Island, Queensland, Australia |
GPS Coordinates: | 9°13'58"S by 142°13'1"E |
Area Served: | Boigu Island, Queensland, Australia |
Operator/Owner: | Torres Strait Islands Regional Council |
Airport Type: | Public |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from GIC |
More Information: | GIC Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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 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 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.
- 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.
Facts about Boigu Island Airport (GIC):
- The furthest airport from Boigu Island Airport (GIC) is Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB), which is located 11,556 miles (18,598 kilometers) away in Parnaiba, Piaui, Brazil.
- Because of Boigu Island Airport's relatively low elevation of 10 feet, planes can take off or land at Boigu Island 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.
- Boigu Island Airport (GIC) currently has only 1 runway.
- The closest airport to Boigu Island Airport (GIC) is Yam Island Airport (XMY), which is located 59 miles (95 kilometers) SE of GIC.