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):

• 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 1953 Dillant–Hopkins hosted an air show which brought flying teams from the US Air Force and US Navy to 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.
• 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.
• In 1945 a steel hangar was constructed at the airport which would also see local operations moved to it from West Keene.
• Dillant–Hopkins Airport (EEN) has 2 runways.

Facts about Sofia Airport Vrazhdebna (SOF):

• The Sofia Airport Centre, a premiere corporate office, hospitality and logistics centre in Bulgaria is being constructed in the vicinity.
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• Options for different airport developments began to be examined in the mid-1960s.
• 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.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• 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.
• On 31 August 2006, Sofia Airport put its new runway system into operation, replacing the old and out-of-date facilities.