Nonstop flight route between Fort Sill, Oklahoma, United States and Gusap, Papua New Guinea:
Departure Airport:

Arrival Airport:

Distance from FSI to GAP:
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- About this route
- FSI Airport Information
- GAP Airport Information
- Facts about FSI
- Facts about GAP
- 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 GAP
- List of Nearest Airports to GAP
- Map of Furthest Airports from GAP
- List of Furthest Airports from GAP
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Gusap Airport (GAP), Gusap, Papua New Guinea would travel a Great Circle distance of 7,908 miles (or 12,726 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 Gusap 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 Gusap 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: | GAP / AYGP |
Airport Names: |
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Location: | Gusap, Papua New Guinea |
GPS Coordinates: | 6°3'12"S by 145°57'37"E |
Airport Type: | Public |
Elevation: | 1450 feet (442 meters) |
# of Runways: | 1 |
View all routes: | Routes from GAP |
More Information: | GAP Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
Facts about Gusap Airport (GAP):
- The furthest airport from Gusap Airport (GAP) is Governador Carlos Wilson Airport (FEN), which is located 11,743 miles (18,899 kilometers) away in Fernando de Noronha, Pernambuco, Brazil.
- The closest airport to Gusap Airport (GAP) is Aiyura Airport (AYU), which is located 20 miles (32 kilometers) S of GAP.
- Gusap Airport (GAP) currently has only 1 runway.
- In addition to being known as "Gusap Airport", another name for GAP is "Gusap Airport".