Nonstop flight route between Canouan Island, Saint Vincent and the Grenadines and Atwater, California, United States:
Departure Airport:

Arrival Airport:

Distance from CIW to MER:
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- About this route
- CIW Airport Information
- MER Airport Information
- Facts about CIW
- Facts about MER
- Map of Nearest Airports to CIW
- List of Nearest Airports to CIW
- Map of Furthest Airports from CIW
- List of Furthest Airports from CIW
- Map of Nearest Airports to MER
- List of Nearest Airports to MER
- Map of Furthest Airports from MER
- List of Furthest Airports from MER
About this route:
A direct, nonstop flight between Canouan Airport (CIW), Canouan Island, Saint Vincent and the Grenadines and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 4,007 miles (or 6,448 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 Canouan Airport and Castle 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 Canouan Airport and Castle Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | CIW / TVSC |
Airport Name: | Canouan Airport |
Location: | Canouan Island, Saint Vincent and the Grenadines |
GPS Coordinates: | 12°41'57"N by 61°20'33"W |
Area Served: | Canouan |
Airport Type: | Public |
Elevation: | 11 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from CIW |
More Information: | CIW Maps & Info |
Arrival 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 |
Facts about Canouan Airport (CIW):
- The closest airport to Canouan Airport (CIW) is Union Island Airport (UNI), which is located only 8 miles (14 kilometers) SW of CIW.
- Canouan Airport (CIW) currently has only 1 runway.
- Because of Canouan Airport's relatively low elevation of 11 feet, planes can take off or land at Canouan 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 furthest airport from Canouan Airport (CIW) is Umbu Mehang Kunda Airport (WGP), which is nearly antipodal to Canouan Airport (meaning Canouan Airport is almost on the exact opposite side of the Earth from Umbu Mehang Kunda Airport), and is located 12,200 miles (19,633 kilometers) away in Waingapu, Sumba, East Nusa Tenggara, Indonesia.
Facts about Castle Airport (MER):
- Castle Airport (MER) currently has only 1 runway.
- 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.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- Castle Airport covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
- 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.
- It was estimated that the cost to relocate the 129 RQW to Castle, to include associated military construction costs, could be recouped in seven years.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.