Nonstop flight route between Fort Sill, Oklahoma, United States and Clayton, New Mexico, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to CAO:
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- About this route
- FSI Airport Information
- CAO Airport Information
- Facts about FSI
- Facts about CAO
- 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 CAO
- List of Nearest Airports to CAO
- Map of Furthest Airports from CAO
- List of Furthest Airports from CAO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Clayton Municipal Airpark (CAO), Clayton, New Mexico, United States would travel a Great Circle distance of 294 miles (or 474 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 relatively short distance between Henry Post Army Airfield and Clayton Municipal Airpark, the route shown on this map most likely still appears to be a straight line.
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: | CAO / KCAO |
Airport Name: | Clayton Municipal Airpark |
Location: | Clayton, New Mexico, United States |
GPS Coordinates: | 36°26'47"N by 103°8'58"W |
Area Served: | Clayton, New Mexico |
Operator/Owner: | Town of Clayton |
Airport Type: | Public |
Elevation: | 4970 feet (1,515 meters) |
# of Runways: | 2 |
View all routes: | Routes from CAO |
More Information: | CAO Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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 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.
- 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.
Facts about Clayton Municipal Airpark (CAO):
- Because of Clayton Municipal Airpark's high elevation of 4,970 feet, planes must typically fly at a faster airspeed in order to takeoff or land at CAO. Combined with a high temperature, this could make CAO a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Clayton Municipal Airpark (CAO) is Sir Gaëtan Duval Airport (RRG), which is located 11,024 miles (17,741 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Clayton Municipal Airpark (CAO) is Dalhart Municipal Airport (DHT), which is located 45 miles (72 kilometers) SE of CAO.
- Clayton Municipal Airpark (CAO) has 2 runways.