Nonstop flight route between Attu Island, Alaska, United States and Portsmouth, New Hampshire, United States:

About this route:

A direct, nonstop flight between Casco Cove Coast Guard Station (ATU), Attu Island, Alaska, United States and Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States would travel a Great Circle distance of 4,799 miles (or 7,724 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 Casco Cove Coast Guard Station and Portsmouth International Airport at Pease, 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 Casco Cove Coast Guard Station and Portsmouth International Airport at Pease. 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 Casco Cove Coast Guard Station (ATU):

• The island is protected as part of the National Parks Trust territory and few people visit the island or area, as it is restricted.
• The furthest airport from Casco Cove Coast Guard Station (ATU) is Cape Town International Airport (CPT), which is located 10,631 miles (17,109 kilometers) away in Cape Town, South Africa.
• Casco Cove Coast Guard Station (ATU) currently has only 1 runway.
• On January 1, 1945, 2nd Lt.
• The closest airport to Casco Cove Coast Guard Station (ATU) is Eareckson Air Station (SYA), which is located 40 miles (65 kilometers) ESE of ATU.
• In addition to being known as "Casco Cove Coast Guard Station", other names for ATU include "LORAN Station Attu" and "(former Naval Air Facility Attu)".
• Because of Casco Cove Coast Guard Station's relatively low elevation of 88 feet, planes can take off or land at Casco Cove Coast Guard Station 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.
• Casco Cove is one of the most isolated and remote airports in the United States.
• Casco Cove Coast Guard Station is a military facility and private use airfield on Attu Island, one of the Aleutian Islands in the U.S.

Facts about Portsmouth International Airport at Pease (PSM):

• Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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.
• Portsmouth International Airport at Pease covers an area of 3,000 acres at an elevation of 100 feet above mean sea level.
• The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
• Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
• The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
• Portsmouth International Airport at Pease (PSM) currently has only 1 runway.