Nonstop flight route between Seletar, Singapore and Koyukuk, Alaska, United States:

About this route:

A direct, nonstop flight between Seletar Airport (XSP), Seletar, Singapore and Koyukuk Airport (KYU), Koyukuk, Alaska, United States would travel a Great Circle distance of 6,375 miles (or 10,260 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 Seletar Airport and Koyukuk 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 Seletar Airport and Koyukuk 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 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.
• During the 1960s, RAF Seletar was home base to No's 103 and 110 Squadrons, both of which were equipped with Westland Whirlwind Mk 10 helicopters and to 34 Squadron, which was equipped with Blackburn Beverleys.
• In addition to being known as "Seletar Airport", other names for XSP include "实里达机场" and "செலட்டர் வான்முகம்".
• 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.
• In December 1966, three Andover CC Mk1 arrived to replace the ageing Vickers Valetta C1 aircraft of 52 Sqn.
• Previously Berjaya Air operated scheduled flights to Tioman and Redang.
• After World War II, the base went back to the RAF and, in the late 1940s and 1950s, the base was heavily involved in the Malayan Emergency, with Beaufighters, Spitfires and Mosquitos based there while operating against Malayan Communist insurgents.
• Seletar Airport (XSP) currently has only 1 runway.
• The same Mitsubishi J2M Raiden fighters being test flown by Japanese naval aviators under close supervision of RAF officers from 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.

Facts about Koyukuk Airport (KYU):

• Because of Koyukuk Airport's relatively low elevation of 149 feet, planes can take off or land at Koyukuk 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 Koyukuk Airport (KYU) is George Airport (GRJ), which is located 10,304 miles (16,583 kilometers) away in George, South Africa.
• The closest airport to Koyukuk Airport (KYU) is Nulato Airport (NUL), which is located only 14 miles (23 kilometers) SW of KYU.
• Koyukuk Airport (KYU) currently has only 1 runway.
• Koyukuk Airport is a state-owned public-use airport located in Koyukuk, a city in the Yukon-Koyukuk Census Area of the U.S.