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):

• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• 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.
• Contract for detailed design and construction of a new control tower of the airport and forming an ATM Glavbolgarstroy.
• 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 handled 350,432 passengers last year.
• 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.
• In 2004 Strabag demanded an additional 6 million euro due to rising steel prices.

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.
• 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.
• 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 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.