Nonstop flight route between Atwater, California, United States and Georgetown, Cayman Islands:
Departure Airport:

Arrival Airport:

Distance from MER to GCM:
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- About this route
- MER Airport Information
- GCM Airport Information
- Facts about MER
- Facts about GCM
- Map of Nearest Airports to MER
- List of Nearest Airports to MER
- Map of Furthest Airports from MER
- List of Furthest Airports from MER
- Map of Nearest Airports to GCM
- List of Nearest Airports to GCM
- Map of Furthest Airports from GCM
- List of Furthest Airports from GCM
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Owen Roberts International Airport (GCM), Georgetown, Cayman Islands would travel a Great Circle distance of 2,666 miles (or 4,290 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 Castle Airport and Owen Roberts International 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 Castle Airport and Owen Roberts International Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | MER / KMER |
Airport Name: | Castle Airport |
Location: | Atwater, California, United States |
GPS Coordinates: | 37°22'50"N by 120°34'5"W |
Operator/Owner: | Merced County Department of Commerce, Aviation, and Economic Development |
Airport Type: | Public |
Elevation: | 191 feet (58 meters) |
# of Runways: | 1 |
View all routes: | Routes from MER |
More Information: | MER Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | GCM / MWCR |
Airport Name: | Owen Roberts International Airport |
Location: | Georgetown, Cayman Islands |
GPS Coordinates: | 19°17'33"N by 81°21'33"W |
Operator/Owner: | Cayman Islands Government |
Airport Type: | Public |
Elevation: | 8 feet (2 meters) |
# of Runways: | 1 |
View all routes: | Routes from GCM |
More Information: | GCM Maps & Info |
Facts about Castle Airport (MER):
- Castle Airport (MER) currently has only 1 runway.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- Because of Castle Airport's relatively low elevation of 191 feet, planes can take off or land at Castle 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.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
- In 2004, recommendations were made to relocate the 129th Rescue Wing of the California Air National Guard and its associated HC-130, MC-130 and HH-60 aircraft from Moffett Federal Airfield to the former Castle Air Force Base, now Castle Airport.
- Castle Airport covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
Facts about Owen Roberts International Airport (GCM):
- Because of Owen Roberts International Airport's relatively low elevation of 8 feet, planes can take off or land at Owen Roberts International 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.
- The closest airport to Owen Roberts International Airport (GCM) is Edward Bodden Airfield - Little Cayman (LYB), which is located 87 miles (140 kilometers) ENE of GCM.
- The furthest airport from Owen Roberts International Airport (GCM) is Cocos (Keeling) Island Airport (CCK), which is located 11,931 miles (19,202 kilometers) away in Cocos Islands, Australia.
- The initiation of Cayman Airways flights to Panama City, Panama is anticipated to allow Brazilian tourists to travel to the Cayman Islands via Copa Airlines flights to Panama.
- In 1952, after Owen Roberts convinced the commissioners of the country to construct airports on all three Cayman Islands, a 5,000 ft runway, along with a terminal was constructed on Grand Cayman at the cost of £100,000.
- Owen Roberts International Airport (GCM) currently has only 1 runway.