Nonstop flight route between Sofia, Bulgaria and Unalaska, Alaska, United States:

About this route:

A direct, nonstop flight between Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria and Unalaska Airport (DUT), Unalaska, Alaska, United States would travel a Great Circle distance of 5,737 miles (or 9,232 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 Sofia Airport Vrazhdebna 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 Sofia Airport Vrazhdebna 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 Sofia Airport Vrazhdebna (SOF):

• Two de-icing platforms are constructed to allow centralised de-icing procedures in winter.
• Terminal 2 was officially opened on 27 December 2006 with the symbolic arrival of Bulgaria Air flight FB 408 from Brussels.
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• The furthest airport from Sofia Airport Vrazhdebna (SOF) is Chatham Islands (CHT), which is located 11,437 miles (18,405 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• Design and construction of a new control tower was discussed in 2006 but this project appeared to be in abeyance by 2008.
• The airport was initially built in the late 1930s on a site 6.3 km by road then.
• The construction of the new Sofia tower is related to the reconstruction and development of Sofia Airport and is the natural extension of the development of the airport complex.
• By the late 1970s, the terminal was handling in the region of three million passengers a year, a million of them on domestic routes.
• The terminal had substantially reached its capacity of some 600,000 passengers a year by the later 1960s and was subjected to a number of refurbishments and extensions beginning in the spring of 1968.
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• The project for the construction of a new airport control tower at Sofia Airport commenced on 16 June 2006 with a decision of the BULATSA Management Board.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.

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.
• 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.
• 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.
• In addition to being known as "Unalaska Airport", other names for DUT include "Dutch Harbor Airport" and "Tom Madsen Airport".