Nonstop flight route between Alamosa, Colorado, United States and Attu Island, Alaska, United States:

About this route:

A direct, nonstop flight between San Luis Valley Regional Airport (ALS), Alamosa, Colorado, United States and Casco Cove Coast Guard Station (ATU), Attu Island, Alaska, United States would travel a Great Circle distance of 3,866 miles (or 6,222 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 San Luis Valley Regional Airport and Casco Cove Coast Guard Station, 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 San Luis Valley Regional Airport and Casco Cove Coast Guard Station. 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 San Luis Valley Regional Airport (ALS):

• Federal Aviation Administration records say the airport had 7,161 passenger boardings in calendar year 2008, 6,279 in 2009 and 6,737 in 2010.
• San Luis Valley Regional Airport is two miles south of Alamosa, in Alamosa County, Colorado.
• Because of San Luis Valley Regional Airport's high elevation of 7,539 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ALS. Combined with a high temperature, this could make ALS a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• San Luis Valley Regional Airport (ALS) has 2 runways.
• The closest airport to San Luis Valley Regional Airport (ALS) is Stevens Field (FAA: PSO) (PGO), which is located 66 miles (106 kilometers) W of ALS.
• In addition to being known as "San Luis Valley Regional Airport", another name for ALS is "Bergman Field".
• The furthest airport from San Luis Valley Regional Airport (ALS) is Sir Gaëtan Duval Airport (RRG), which is located 11,054 miles (17,790 kilometers) away in Rodrigues Island, Mauritius.

Facts about Casco Cove Coast Guard Station (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)".
• Casco Cove CGS resides at elevation of 88 feet above mean sea level.
• 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.
• 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.
• The island is protected as part of the National Parks Trust territory and few people visit the island or area, as it is restricted.
• Casco Cove is one of the most isolated and remote airports in the United States.
• 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.
• On January 1, 1945, 2nd Lt.