Nonstop flight route between Greensboro, North Carolina, United States and Unalaska, Alaska, United States:

About this route:

A direct, nonstop flight between Piedmont Triad International Airport (GSO), Greensboro, North Carolina, United States and Unalaska Airport (DUT), Unalaska, Alaska, United States would travel a Great Circle distance of 4,126 miles (or 6,641 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 Piedmont Triad 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 Piedmont Triad 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 Piedmont Triad International Airport (GSO):

• Piedmont Triad International Airport (GSO) has 3 runways.
• The furthest airport from Piedmont Triad International Airport (GSO) is Margaret River Airport (MGV), which is located 11,574 miles (18,626 kilometers) away in Margaret River, Western Australia, Australia.
• Delta Connection carrier Comair built a maintenance hangar at PTI to perform work on their CRJ's in 2005, bringing nearly 60 mechanics to Greensboro.
• FedEx Express opened the hub building at Piedmont Triad International Airport in June 2009.
• The airport was renamed Greensboro-High Point Airport and later Greensboro – High Point – Winston-Salem Regional Airport.
• Piedmont Triad International Airport had its start in 1927 when the Tri-City Airport Commission selected 112 acres near the community of Friendship for an airport, and petitioned to become a stop along the congressionally authorized airmail route from New York to New Orleans.
• Pitcairn Aviation, Incorporated was given the contract to fly the airmail route, the second official airmail route in the United States, and Pitcairn Aviation made the first delivery of airmail in North Carolina on May 1, 1928.
• Because of Piedmont Triad International Airport's relatively low elevation of 926 feet, planes can take off or land at Piedmont Triad 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 closest airport to Piedmont Triad International Airport (GSO) is Smith Reynolds Airport (INT), which is located only 16 miles (26 kilometers) W of GSO.

Facts about Unalaska Airport (DUT):

• Unalaska Airport (DUT) currently has only 1 runway.
• 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.
• 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 closest airport to Unalaska Airport (DUT) is Akutan Seaplane Base (KQA), which is located 35 miles (56 kilometers) ENE of DUT.
• Unalaska Airport has one runway designated 12/30 with an asphalt surface measuring 4,100 by 100 feet.
• 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.