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):

• During the 1973 Yom Kippur War, Lajes Field also supported U.S.
• 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.
• Lajes Air Base (TER) currently has only 1 runway.
• 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.
• During World War II, the designation of the airfield was changed to Air Base No.4 and the Portuguese government expanded the runway, sending troops and equipment to Terceira, including Gloster Gladiator fighters.
• In 1949, the North Atlantic Treaty Organization military alliance was established.
• The origin of the Lajes Field dates back to 1928, when Portuguese Army Lieutenant colonel Eduardo Gomes da Silva wrote a report on the possible construction of an airfield in the plainland of Lajes, for that branch's aviation service.
• Portugal has explored contingencies in the event the United States military eventually abandons Lajes, including the possibility of entering an agreement with the People's Republic of China.
• In 1961, the Portuguese Air Force EICAP was transferred to Lajes, operating Douglas C-47, Douglas C-54 and later CASA C-212 Aviocar.
• Lajes Field was one of the two stopover and refueling bases for the first transatlantic crossing of non-rigid airships in 1944.
• 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".
• The base also supports other NATO and non-NATO armed forces assets crossing the Atlantic for transport, VIP, exercise, relief or humanitarian duties.
• The closest airport to Lajes Air Base (TER) is Graciosa Airport (GRW), which is located 55 miles (89 kilometers) WNW of TER.
• The civilian terminal also plays an important role in support of passenger and cargo airliners, executive, corporate and private jets flying to the island or beyond as the central location in the Azores group of islands makes it an ideal spot for refuelling or stopover.

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.
• 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.
• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport.Federal Aviation Administration records say the airport had 85,649 passenger boardings in calendar year 2008, 88,314 in 2009 and 98,193 in 2010.