Nonstop flight route between Atwater, California, United States and Okinawa, Japan:
Departure Airport:

Arrival Airport:

Distance from MER to OKA:
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- About this route
- MER Airport Information
- OKA Airport Information
- Facts about MER
- Facts about OKA
- 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 OKA
- List of Nearest Airports to OKA
- Map of Furthest Airports from OKA
- List of Furthest Airports from OKA
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Naha Airport (OKA), Okinawa, Japan would travel a Great Circle distance of 6,205 miles (or 9,986 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 Naha 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 Naha 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: | OKA / ROAH |
Airport Names: |
|
Location: | Okinawa, Japan |
GPS Coordinates: | 26°11'44"N by 127°38'44"E |
Area Served: | Naha, Okinawa, Japan |
Operator/Owner: | Ministry of Land, Infrastructure and Transport |
Airport Type: | Public |
Elevation: | 11 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from OKA |
More Information: | OKA 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.
- Since the mid-1940s, aircraft maintenance, fuel management, and fire training activities on the base have generated wastes that consist primarily of waste fuels, oils, solvents, and cleaners.
- EPA investigations have been completed at multiple areas of contamination including landfills, discharge areas, chemical disposal areas, fire training areas, fuel spill areas, and polychlorinated biphenyl spill areas.
- 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.
- The airport is located at the former Castle Air Force Base which closed in 1995.
Facts about Naha Airport (OKA):
- Congested Naha Airport served 14,495,054 passengers in FY2006, roughly similar numbers in 2012.
- Peach, a low cost carrier based at Kansai International Airport in Osaka, announced that it would establish its second hub at Naha in July 2014, which would initially have flights to Osaka, Fukuoka, Ishigaki and Taipei.ANA Holdings, the parent company of both Peach and Vanilla Air, opened a new LCC terminal in a refurbished portion of the airport's cargo area in October 2012, and plans to open new international facilities in October 2014.
- The airport was a popular connecting point between Taipei and Shanghai prior to the opening of direct flights between mainland China and Taiwan.
- Naha Airport (OKA) currently has only 1 runway.
- In addition to being known as "Naha Airport", other names for OKA include "那覇空港" and "Naha Kūkō".
- The closest airport to Naha Airport (OKA) is Kadena Air Base 嘉手納飛行場 Kadena Hikōjō (DNA), which is located only 13 miles (21 kilometers) NE of OKA.
- The furthest airport from Naha Airport (OKA) is Paulo Abdala Airport (FBE), which is nearly antipodal to Naha Airport (meaning Naha Airport is almost on the exact opposite side of the Earth from Paulo Abdala Airport), and is located 12,392 miles (19,943 kilometers) away in Francisco Beltrao, Paraná, Brazil.
- The airport was closed for refurbishment between 1952 and 1954.
- Because of Naha Airport's relatively low elevation of 11 feet, planes can take off or land at Naha 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.