Nonstop flight route between Louisville, Kentucky, United States and Sofia, Bulgaria:

About this route:

A direct, nonstop flight between Louisville International Airport (SDF), Louisville, Kentucky, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 5,301 miles (or 8,532 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 Louisville International 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 Louisville International 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 Louisville International Airport (SDF):

• It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a primary commercial service airport since it has over 10,000 passenger boardings per year.
• The closest airport to Louisville International Airport (SDF) is Bowman Field (LOU), which is located only 5 miles (9 kilometers) NE of SDF.
• In addition to commercial air traffic there is a significant amount of general aviation activity at Louisville International Airport, for business travel and other purposes.
• The furthest airport from Louisville International Airport (SDF) is Margaret River Airport (MGV), which is located 11,239 miles (18,088 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Louisville International Airport's relatively low elevation of 501 feet, planes can take off or land at Louisville 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.
• UPS Airlines is currently the airport's largest operator.
• Louisville International Airport handled 3,349,162 passengers last year.
• Louisville International Airport is home to the Chautauqua Airlines maintenance complex, capable of holding nine planes, as well as the Compass Airlines main maintenance complex.
• Louisville International Airport (SDF) has 3 runways.
• In addition to being known as "Louisville International Airport", another name for SDF is "Standiford Field".
• Until around 1947 Bowman Field was Louisville's main airport.

Facts about Sofia Airport Vrazhdebna (SOF):

• On 31 August 2006, Sofia Airport put its new runway system into operation, replacing the old and out-of-date facilities.
• A significant and recurring operational criticism of Sofia Airport has concerned its historical lack of all-weather operations capability.
• 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.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• The new tower is an extremely important facility for both ATC and the airport because it is related to the safety and security of flights, explained by the transport department.
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• 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.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• The VIP terminal is located in the western wing of Terminal 1 and has an entrance of its own, providing an access to four separate rooms – one main room and two separated rooms with about 20 seats each.
• Design and construction of a new control tower was discussed in 2006 but this project appeared to be in abeyance by 2008.