Nonstop flight route between Asmara, Eritrea and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from ASM to FSI:
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- About this route
- ASM Airport Information
- FSI Airport Information
- Facts about ASM
- Facts about FSI
- Map of Nearest Airports to ASM
- List of Nearest Airports to ASM
- Map of Furthest Airports from ASM
- List of Furthest Airports from ASM
- 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 Asmara International Airport (ASM), Asmara, Eritrea and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 7,993 miles (or 12,863 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 Asmara International 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 Asmara International 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: | ASM / HHAS |
Airport Name: | Asmara International Airport |
Location: | Asmara, Eritrea |
GPS Coordinates: | 15°17'30"N by 38°54'38"E |
Area Served: | Asmara |
Airport Type: | Military/Public |
Elevation: | 7661 feet (2,335 meters) |
# of Runways: | 2 |
View all routes: | Routes from ASM |
More Information: | ASM 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 Asmara International Airport (ASM):
- The closest airport to Asmara International Airport (ASM) is Massawa International Airport (MSW), which is located 41 miles (66 kilometers) NE of ASM.
- On 7 July 1935, an agreement was signed with Imperial Airways to connect Asmara to Khartoum.
- The airport is the most important of Eritrea, even if it has some restrictions because it is located inside the external neighboroughs of Asmara.
- The furthest airport from Asmara International Airport (ASM) is Fangatau Airport (FGU), which is nearly antipodal to Asmara International Airport (meaning Asmara International Airport is almost on the exact opposite side of the Earth from Fangatau Airport), and is located 12,398 miles (19,952 kilometers) away in Fangatau, French Polynesia.
- Asmara International Airport (ASM) has 2 runways.
- Because of Asmara International Airport's high elevation of 7,661 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ASM. Combined with a high temperature, this could make ASM a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
Facts about Henry Post Army Airfield (FSI):
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- 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.
- 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.