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

About this route:

A direct, nonstop flight between Naha Airport (OKA), Okinawa, Japan and Castle Airport (MER), Atwater, California, United States 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 Naha 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 Naha Airport and Castle Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Naha Airport (OKA):

• Oroku Aerodrome, an Imperial Japanese Navy airfield, opened in 1933.
• In addition to being known as "Naha Airport", other names for OKA include "那覇空港" and "Naha Kūkō".
• 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.
• Naha Airport (OKA) currently has only 1 runway.
• 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.
• Air America operated interisland flights to Miyako and Ishigaki from 1964 to 1967, when Southwest Airlines took over these routes.
• 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 airport was a popular connecting point between Taipei and Shanghai prior to the opening of direct flights between mainland China and Taiwan.
• Okinawa was returned to Japan in 1972.
• All Nippon Airways operates an overnight cargo hub at Naha Airport, which receives inbound Boeing 767 freighter flights from key destinations in Japan, China and Southeast Asia between 1 and 4 a.m., followed by return flights between 4 and 6 a.m., allowing overnight service between these regional hubs as well as onward connections to other ANA and partner carrier flights.

Facts about Castle Airport (MER):

• 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.
• The airport is located at the former Castle Air Force Base which closed in 1995.
• 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.
• Castle Airport (MER) currently has only 1 runway.
• The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
• 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.