Nonstop flight route between Fort Sill, Oklahoma, United States and Carlsbad, California, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to CLD:
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- About this route
- FSI Airport Information
- CLD Airport Information
- Facts about FSI
- Facts about CLD
- 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 CLD
- List of Nearest Airports to CLD
- Map of Furthest Airports from CLD
- List of Furthest Airports from CLD
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and McClellan–Palomar Airport (CLD), Carlsbad, California, United States would travel a Great Circle distance of 1,086 miles (or 1,748 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 McClellan–Palomar Airport, 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: | CLD / KCRQ |
Airport Names: |
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Location: | Carlsbad, California, United States |
GPS Coordinates: | 33°7'41"N by 117°16'48"W |
Area Served: | North San Diego County |
Operator/Owner: | County of San Diego |
Airport Type: | Public |
Elevation: | 331 feet (101 meters) |
# of Runways: | 1 |
View all routes: | Routes from CLD |
More Information: | CLD Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 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.
- Post Field served as a base for flight training for the Air Service.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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 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.
- 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.
Facts about McClellan–Palomar Airport (CLD):
- Because of McClellan–Palomar Airport's relatively low elevation of 331 feet, planes can take off or land at McClellan–Palomar Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- It opened a $24 million airline terminal on January 29, 2009.
- In addition to being known as "McClellan–Palomar Airport", another name for CLD is "CRQ".
- The closest airport to McClellan–Palomar Airport (CLD) is Bob Maxwell Field (Oceanside Municipal Airport) (OCN), which is located only 7 miles (12 kilometers) NNW of CLD.
- The furthest airport from McClellan–Palomar Airport (CLD) is Sir Gaëtan Duval Airport (RRG), which is located 11,512 miles (18,527 kilometers) away in Rodrigues Island, Mauritius.
- The airport is named for Gerald McClellan, an aviator and civic leader in San Diego's North County area.
- McClellan–Palomar Airport (CLD) currently has only 1 runway.