Nonstop flight route between Seletar, Singapore and The Dalles, Oregon, United States:

About this route:

A direct, nonstop flight between Seletar Airport (XSP), Seletar, Singapore and Columbia Gorge Regional Airport (DLS), The Dalles, Oregon, United States would travel a Great Circle distance of 8,184 miles (or 13,171 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 Columbia Gorge Regional 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 Columbia Gorge Regional 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):

• RAF Seletar was a Royal Air Force station in Singapore between 1928 and 1971.
• Seletar Airport now operates as a general aviation airport, mainly for chartered flights and training purposes.
• Seletar Airport (XSP) currently has only 1 runway.
• Among Seletar’s claim to fame was that several classic aircraft type flew their last RAF Operational sorties from there including the Short Singapore flying boat,Supermarine Spitfire, De Havilland Mosquito, Short Sunderland flying boat and Bristol Beaufighter.
• The formative years of the SADC was established at Seletar Airbase in September 1968, with the setting up of the Flying Training School utilising three Cessna 172G/H on loan from the Singapore Flying Club.
• 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.
• When the Japanese launched their invasion of Malaya and Singapore, Seletar housed the RAF’s 205 Sqn with PBY Catalina flying boats and 36 and 100 Sqns with obsolete Vickers Vildebeest torpedo bombers, along with 151 Maintenance Unit.
• 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.
• 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.
• 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.
• A Short Singapore Mk III flying boat, similar to those operated by 205 Sqn.
• In addition to being known as "Seletar Airport", other names for XSP include "实里达机场" and "செலட்டர் வான்முகம்".

Facts about Columbia Gorge Regional Airport (DLS):

• Because of Columbia Gorge Regional Airport's relatively low elevation of 247 feet, planes can take off or land at Columbia Gorge Regional 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 Great Depression, the city was granted $12,000 by the Works Progress Administration, but that was later revoked in 1935 when the WPA learned the city only leased the airport.
• The closest airport to Columbia Gorge Regional Airport (DLS) is Cascade Locks State Airport (CZK), which is located 35 miles (56 kilometers) W of DLS.
• Columbia Gorge Regional Airport (DLS) has 2 runways.
• The furthest airport from Columbia Gorge Regional Airport (DLS) is Tôlanaro Airport (FTU), which is located 10,869 miles (17,492 kilometers) away in Tôlanaro, Madagascar.
• In addition to being known as "Columbia Gorge Regional Airport", another name for DLS is "The Dalles Municipal Airport".