Nonstop flight route between Fort Sill, Oklahoma, United States and Chilas, Pakistan:
Departure Airport:

Arrival Airport:

Distance from FSI to CHB:
Share this route:
Jump to:
- About this route
- FSI Airport Information
- CHB Airport Information
- Facts about FSI
- Facts about CHB
- 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 CHB
- List of Nearest Airports to CHB
- Map of Furthest Airports from CHB
- List of Furthest Airports from CHB
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Chilas Airport (CHB), Chilas, Pakistan would travel a Great Circle distance of 7,571 miles (or 12,184 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 Chilas 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 Chilas 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: | CHB / OPCL |
Airport Name: | Chilas Airport |
Location: | Chilas, Pakistan |
GPS Coordinates: | 35°25'36"N by 74°5'5"E |
Area Served: | Chilas, Northern Areas, Pakistan |
Operator/Owner: | Pakistan Civil Aviation Authority |
Airport Type: | Public |
Elevation: | 4150 feet (1,265 meters) |
# of Runways: | 1 |
View all routes: | Routes from CHB |
More Information: | CHB Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- 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.
- 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 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.
Facts about Chilas Airport (CHB):
- The furthest airport from Chilas Airport (CHB) is Mataveri International Airport (IPC), which is located 11,830 miles (19,038 kilometers) away in Easter Island, Chile.
- The closest airport to Chilas Airport (CHB) is Gilgit Airport (GIL), which is located 37 miles (59 kilometers) NNE of CHB.
- Because of Chilas Airport's high elevation of 4,150 feet, planes must typically fly at a faster airspeed in order to takeoff or land at CHB. Combined with a high temperature, this could make CHB a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Chilas Airport (CHB) currently has only 1 runway.