Nonstop flight route between Keene, New Hampshire, United States and Sofia, Bulgaria:

About this route:

A direct, nonstop flight between Dillant–Hopkins Airport (EEN), Keene, New Hampshire, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 4,553 miles (or 7,328 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 Dillant–Hopkins 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 Dillant–Hopkins 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 Dillant–Hopkins Airport (EEN):

• Because of Dillant–Hopkins Airport's relatively low elevation of 149 feet, planes can take off or land at Dillant–Hopkins 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 Dillant–Hopkins Airport (EEN) is Jaffrey Airport - Silver Ranch Airpark (AFN), which is located only 15 miles (24 kilometers) ESE of EEN.
• Dillant–Hopkins Airport is a general aviation airport located 2 miles south of the central business district of Keene, in Cheshire County, New Hampshire, USA.
• The city had enjoyed six decades of regularly scheduled airline service since the 1940s with multiple daily flights operated with a mix of commuter, regional prop, and mainline jet service.
• Dillant–Hopkins Airport (EEN) has 2 runways.
• In May 1961 Mohawk ceased servicing Keene using the DC3 and switched to the Convair 440 for its passenger service into the city.
• The land upon which the airport sits was purchased in 1942 and was dedicated October 31, 1943, before a crowd of five thousand.
• In 1953 Dillant–Hopkins hosted an air show which brought flying teams from the US Air Force and US Navy to Keene.
• The furthest airport from Dillant–Hopkins Airport (EEN) is Margaret River Airport (MGV), which is located 11,700 miles (18,830 kilometers) away in Margaret River, Western Australia, Australia.

Facts about Sofia Airport Vrazhdebna (SOF):

• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• 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.
• Service life of the new airport control tower will be more than 40 years and is designed to serve the airport with a possible extension.
• By the late 1970s, the terminal was handling in the region of three million passengers a year, a million of them on domestic routes.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• On 31 August 2006, Sofia Airport put its new runway system into operation, replacing the old and out-of-date facilities.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• Total cost of the project was planned at 200 million euros.
• 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 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.
• The infrastructure surrounding the building was expected to be completed in 2007.