Nonstop flight route between Washington, D.C. / Virginia, United States and Unalaska, Alaska, United States:

About this route:

A direct, nonstop flight between Washington Dulles International Airport (IAD), Washington, D.C. / Virginia, United States and Unalaska Airport (DUT), Unalaska, Alaska, United States would travel a Great Circle distance of 4,076 miles (or 6,560 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 Washington Dulles International Airport and Unalaska 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 Washington Dulles International Airport and Unalaska 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 Washington Dulles International Airport (IAD):

• The design included a landscaped man-made lake to collect rainwater, a low-rise hotel, and a row of office buildings along the north side of the main parking lot.
• At the end of World War II, growth in aviation and in the Washington metropolitan area led Congress to pass the Washington Airport Act of 1950, providing federal backing for a second airport.
• The closest airport to Washington Dulles International Airport (IAD) is Leesburg Executive Airport (JYO), which is located only 11 miles (17 kilometers) NNW of IAD.
• Because of Washington Dulles International Airport's relatively low elevation of 313 feet, planes can take off or land at Washington Dulles International 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.
• The C and D concourses, completed in 1983 and designed by Hellmuth, Obata and Kassabaum, were originally designed as a temporary base for United Airlines, which began hub operations at the airport in 1985.
• The furthest airport from Washington Dulles International Airport (IAD) is Margaret River Airport (MGV), which is located 11,659 miles (18,763 kilometers) away in Margaret River, Western Australia, Australia.
• Conceived in early planning sessions in 1959, Dulles is one of the few remaining airports to use the mobile lounge for boarding and disembarkation from aircraft, and to transfer passengers between the midfield concourses and to and from the main terminal building.
• Construction is now underway to connect the airport to Washington via the Silver Line of the Washington Metro.
• Washington Dulles International Airport (IAD) has 5 runways.

Facts about Unalaska Airport (DUT):

• The closest airport to Unalaska Airport (DUT) is Akutan Seaplane Base (KQA), which is located 35 miles (56 kilometers) ENE of DUT.
• Unalaska Airport (DUT) currently has only 1 runway.
• Because of Unalaska Airport's relatively low elevation of 22 feet, planes can take off or land at Unalaska 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.
• The furthest airport from Unalaska Airport (DUT) is Cape Town International Airport (CPT), which is located 11,037 miles (17,763 kilometers) away in Cape Town, South Africa.
• In addition to being known as "Unalaska Airport", other names for DUT include "Dutch Harbor Airport" and "Tom Madsen Airport".
• Unalaska Airport is the base for the "Dutch Harbor Approach" mission supplied with Microsoft Flight Simulator X.