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):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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.
- 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.
Facts about Gusap Airport (GAP):
- In addition to being known as "Gusap Airport", another name for GAP is "Gusap Airport".
- Gusap Airport (GAP) currently has only 1 runway.
- 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.