Nonstop flight route between Atwater, California, United States and Seletar, Singapore:

About this route:

A direct, nonstop flight between Castle Airport (MER), Atwater, California, United States and Seletar Airport (XSP), Seletar, Singapore would travel a Great Circle distance of 8,534 miles (or 13,735 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 Seletar 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 Seletar 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 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.
• 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.
• It serves one school, Sierra Academy of Aeronautics, which specializes in training foreign pilots, from the People's Republic of China.
• The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
• 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 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.
• 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 Seletar Airport (XSP):

• Because of Seletar Airport's relatively low elevation of 36 feet, planes can take off or land at Seletar 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.
• With the threat of war in the area, the RAF started building up their forces in the Far East in the late 1930s and early 1940s.
• The furthest airport from Seletar Airport (XSP) is Francisco de Orellana Airport (OCC), which is nearly antipodal to Seletar Airport (meaning Seletar Airport is almost on the exact opposite side of the Earth from Francisco de Orellana Airport), and is located 12,348 miles (19,873 kilometers) away in Coca, Ecuador.
• Catalina I of 205 Sqn undergoing servicing in their hangar at RAF Seletar.
• The closest airport to Seletar Airport (XSP) is Paya Lebar Air Base (PLAB) (QPG), which is located only 5 miles (8 kilometers) SE of XSP.
• Seletar Airport (XSP) currently has only 1 runway.
• The Republic of Singapore Flying Club, Seletar Flying Club and Singapore Flying College are situated at Seletar Airport.
• In addition to being known as "Seletar Airport", other names for XSP include "实里达机场" and "செலட்டர் வான்முகம்".
• The RAF station closed at the end of March 1971 and Seletar was handed over to the Singapore Air Defence Command later) by 1973, after the British pullout.