Nonstop flight route between Kelso, Washington, United States and Sofia, Bulgaria:

About this route:

A direct, nonstop flight between Southwest Washington Regional Airport (KLS), Kelso, Washington, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 5,961 miles (or 9,594 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 Southwest Washington Regional Airport and Sofia Airport Vrazhdebna, 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 Southwest Washington Regional Airport and Sofia Airport Vrazhdebna. 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 Southwest Washington Regional Airport (KLS):

• Kelso-Longview Airport opened in May 1941 on 109 acres of a nearby dairy farm, as a training field for amateur pilots, and has since become a regional transportation center for southwest Washington.
• The airport has one passenger terminal consisting of 12 gates.
• Southwest Washington Regional Airport covers an area of 110 acres at an elevation of 20 feet above mean sea level.
• The furthest airport from Southwest Washington Regional Airport (KLS) is Tôlanaro Airport (FTU), which is located 10,876 miles (17,503 kilometers) away in Tôlanaro, Madagascar.
• The closest airport to Southwest Washington Regional Airport (KLS) is South Lewis County Airport (TDO), which is located 25 miles (41 kilometers) N of KLS.
• Southwest Washington Regional Airport (KLS) currently has only 1 runway.
• Because of Southwest Washington Regional Airport's relatively low elevation of 20 feet, planes can take off or land at Southwest Washington Regional 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.

Facts about Sofia Airport Vrazhdebna (SOF):

• Two de-icing platforms are constructed to allow centralised de-icing procedures in winter.
• Design and construction of a new control tower was discussed in 2006 but this project appeared to be in abeyance by 2008.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• A lot of consideration has been given to the design of the layout, the functional definition of the working positions, the operations room surface area for ANS provision and meteorological observation, as well as to the requirements for visibility to the runway and the approaches and access to an open observation platform.
• 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 handled 350,432 passengers last year.
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• A significant and recurring operational criticism of Sofia Airport has concerned its historical lack of all-weather operations capability.
• The manager will have full visibility over the airport, to guide aircraft landing and taking off.
• On 19 August 2011 in the presence of Ivaylo Moskovski, minister of transport, information technology and communications, the BULATSA director general Diyan Dinev, Glavbolgarstroy AD chief executive director Pavel Kalistratov and Glavbolgarstroy AD executive director and management board member Nina Stoyanova signed the design execution and construction contract between BULATSA and Glavbolgarstroy AD for the new control tower at Sofia Airport.
• 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.