Nonstop flight route between Lajes, Azores, Portugal and Helena, Montana, United States:

About this route:

A direct, nonstop flight between Lajes Air Base (TER), Lajes, Azores, Portugal and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 4,134 miles (or 6,652 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 Lajes Air Base 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 Lajes Air Base 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 Lajes Air Base (TER):

• The closest airport to Lajes Air Base (TER) is Graciosa Airport (GRW), which is located 55 miles (89 kilometers) WNW of TER.
• Civilian operators may use Terceira Airport/Lajes Air Base after requesting a landing permit according to the rules inscribed in the AIP for Portugal, issued by the Portuguese Directorate of Civilian Aviation.
• Lajes Air Base (TER) currently has only 1 runway.
• In 1980, an earthquake measuring 7.0 on the Richter scale struck Terceira Island.
• The furthest airport from Lajes Air Base (TER) is Merimbula Airport (MIM), which is nearly antipodal to Lajes Air Base (meaning Lajes Air Base is almost on the exact opposite side of the Earth from Merimbula Airport), and is located 12,229 miles (19,680 kilometers) away in Merimbula, New South Wales, Australia.
• In 1949, the North Atlantic Treaty Organization military alliance was established.
• In addition to being known as "Lajes Air Base", other names for TER include "Base Aérea das Lajes", "Base Aérea Nº 4" and "Aeroporto das Lajes".
• Because of Lajes Air Base's relatively low elevation of 180 feet, planes can take off or land at Lajes Air Base 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.

Facts about Helena Regional Airport (HLN):

• Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.
• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
• Helena Regional Airport (HLN) has 3 runways.
• 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.