Nonstop flight route between Seletar, Singapore and Helena, Montana, United States:

About this route:

A direct, nonstop flight between Seletar Airport (XSP), Seletar, Singapore and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 8,471 miles (or 13,632 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 Helena 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 Helena 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):

• 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.
• 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 is a civilian airport located at Seletar, in the northeastern region of Singapore, and is managed by the Changi Airport Group.
• In addition to being known as "Seletar Airport", other names for XSP include "实里达机场" and "செலட்டர் வான்முகம்".
• Seletar Airport (XSP) currently has only 1 runway.
• Vickers Vildebeest Mk IIs, K2918 and K2921, of 'A' Flight, No.
• The Republic of Singapore Flying Club, Seletar Flying Club and Singapore Flying College are situated at Seletar Airport.
• 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.
• 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.
• December 1945, captured Mitsubishi J2M Raiden fighters belonging to the 381st Kōkūtai of Imperial Japanese Navy Air Service being evaluated at Seletar airfield.

Facts about Helena Regional Airport (HLN):

• The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
• The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.
• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• Helena Regional Airport (HLN) has 3 runways.
• Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.