Nonstop flight route between Tengah, Singapore and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Tengah Air Base (TAB) (TGA), Tengah, Singapore and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 9,520 miles (or 15,321 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 Tengah Air Base (TAB) and St. Louis 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 Tengah Air Base (TAB) and St. Louis 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 Tengah Air Base (TAB) (TGA):

• Because of Tengah Air Base (TAB)'s relatively low elevation of 50 feet, planes can take off or land at Tengah Air Base (TAB) 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.
• Bristol Blenheim Mk IV bombers at RAF Tengah, June 1941
• In addition to being known as "Tengah Air Base (TAB)", other names for TGA include "登加空军基地" and "Pangkalan Udara Tengah".
• English Electric Canberra B.15 of No.
• The RAF station closed at the end of March 1971 and Tengah was handed over to the Singapore Air Defence Command by 1973, after the British pullout.
• After the Japanese capture of Singapore, Tengah came under the control of the Imperial Japanese Army Air Force while the Imperial Japanese Navy Air Service took over the other two RAF stations of RAF Sembawang and RAF Seletar as Singapore was split into north-south sphere of control.
• The furthest airport from Tengah Air Base (TAB) (TGA) is Francisco de Orellana Airport (OCC), which is nearly antipodal to Tengah Air Base (TAB) (meaning Tengah Air Base (TAB) is almost on the exact opposite side of the Earth from Francisco de Orellana Airport), and is located 12,357 miles (19,886 kilometers) away in Coca, Ecuador.
• Tengah Air Base (TAB) (TGA) has 3 runways.
• RAF Tengah was commissioned in 1939.
• The closest airport to Tengah Air Base (TAB) (TGA) is Seletar Airport (XSP), which is located only 11 miles (18 kilometers) E of TGA.

Facts about St. Louis Regional Airport (ALN):

• The 2,250 acres airfield sits at 544 ft MSL.
• The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
• Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.
• St. Louis Regional Airport (ALN) has 2 runways.
• Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis 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.