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

About this route:

A direct, nonstop flight between Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria and Dillant–Hopkins Airport (EEN), Keene, New Hampshire, United States 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 Sofia Airport Vrazhdebna and Dillant–Hopkins 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 Dillant–Hopkins 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):

• 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.
• 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.
• 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.
• 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".
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• During the Second World War, the facilities were used by the military.
• Contract for detailed design and construction of a new control tower of the airport and forming an ATM Glavbolgarstroy.

Facts about Dillant–Hopkins Airport (EEN):

• Dillant–Hopkins Airport (EEN) has 2 runways.
• 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.
• The land upon which the airport sits was purchased in 1942 and was dedicated October 31, 1943, before a crowd of five thousand.
• In 1967 the FAA recommended a $1.8 million series of improvements which would include further extending the runways, the construction of a control tower, improved buildings, and other facilities.
• In 1945 a steel hangar was constructed at the airport which would also see local operations moved to it from West Keene.
• 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.
• In May 1961 Mohawk ceased servicing Keene using the DC3 and switched to the Convair 440 for its passenger service into the city.
• 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.