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

Arrival Airport:

Distance from MER to MMD:
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- About this route
- MER Airport Information
- MMD Airport Information
- Facts about MER
- Facts about MMD
- 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 MMD
- List of Nearest Airports to MMD
- Map of Furthest Airports from MMD
- List of Furthest Airports from MMD
About this route:
A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Minami-Daito Airport (MMD), Minami Daito, Okinawa, Japan would travel a Great Circle distance of 6,053 miles (or 9,742 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 Minami-Daito 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 Minami-Daito 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: | MMD / ROMD |
Airport Names: |
|
Location: | Minami Daito, Okinawa, Japan |
GPS Coordinates: | 25°50'48"N by 131°15'48"E |
Operator/Owner: | Okinawa Prefecture |
Airport Type: | Public |
Elevation: | 159 feet (48 meters) |
# of Runways: | 1 |
View all routes: | Routes from MMD |
More Information: | MMD Maps & Info |
Facts about Castle Airport (MER):
- Castle Airport (MER) currently has only 1 runway.
- 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.
- 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 furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- The EPA currently has this base listed on their database due to the bulk wastes such as solvents, oils, fuels, and sludges which were disposed in pits at landfills around the base until 1977.
- 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.
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
Facts about Minami-Daito Airport (MMD):
- Because of Minami-Daito Airport's relatively low elevation of 159 feet, planes can take off or land at Minami-Daito 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 prefecture operates the airport, which is classified as a third class airport.
- The furthest airport from Minami-Daito Airport (MMD) is Joinville-Lauro Carneiro de Loyola Airport (JOI), which is nearly antipodal to Minami-Daito Airport (meaning Minami-Daito Airport is almost on the exact opposite side of the Earth from Joinville-Lauro Carneiro de Loyola Airport), and is located 12,411 miles (19,973 kilometers) away in Joinville, Santa Catarina, Brazil.
- The original Minamidaito Airport began as an air base for the Imperial Japanese Navy in 1934.
- Minami-Daito Airport (MMD) currently has only 1 runway.
- In addition to being known as "Minami-Daito Airport", other names for MMD include "南大東空港" and "Minamidaitō Kūkō".
- The closest airport to Minami-Daito Airport (MMD) is Kitadaito Airport (KTD), which is located only 8 miles (13 kilometers) NNE of MMD.