Nonstop flight route between Fort Sill, Oklahoma, United States and Sivas, Turkey:
Departure Airport:

Arrival Airport:

Distance from FSI to VAS:
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- About this route
- FSI Airport Information
- VAS Airport Information
- Facts about FSI
- Facts about VAS
- 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 VAS
- List of Nearest Airports to VAS
- Map of Furthest Airports from VAS
- List of Furthest Airports from VAS
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Sivas Nuri Demirağ Airport (VAS), Sivas, Turkey would travel a Great Circle distance of 6,562 miles (or 10,561 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 Sivas Nuri Demirağ 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 Sivas Nuri Demirağ 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: | VAS / LTAR |
Airport Name: | Sivas Nuri Demirağ Airport |
Location: | Sivas, Turkey |
GPS Coordinates: | 39°46'0"N by 37°1'0"E |
Operator/Owner: | Turkish Government Airport Management |
Airport Type: | Public |
Elevation: | 5222 feet (1,592 meters) |
# of Runways: | 1 |
View all routes: | Routes from VAS |
More Information: | VAS Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- Post Field served as a base for flight training for the Air Service.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
Facts about Sivas Nuri Demirağ Airport (VAS):
- Sivas Nuri Demirağ Airport (VAS) currently has only 1 runway.
- The furthest airport from Sivas Nuri Demirağ Airport (VAS) is Totegegie Airport (GMR), which is located 11,191 miles (18,009 kilometers) away in Mangareva, Gambier Islands, French Polynesia.
- The closest airport to Sivas Nuri Demirağ Airport (VAS) is Tokat Airport (TJK), which is located 51 miles (82 kilometers) NW of VAS.
- Because of Sivas Nuri Demirağ Airport's high elevation of 5,222 feet, planes must typically fly at a faster airspeed in order to takeoff or land at VAS. Combined with a high temperature, this could make VAS a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.