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

About this route:

A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 4,487 miles (or 7,221 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 Portsmouth International Airport at Pease 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 Portsmouth International Airport at Pease 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 Portsmouth International Airport at Pease (PSM):

• The airport served as a hub for Pan Am from 1998 until 2005, when all mainline Pan Am flights at the airport were suspended.
• Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
• The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
• Portsmouth International Airport at Pease, formerly known as Pease International Airport, is a joint civil and military use airport located one nautical mile west of the central business district of Portsmouth, a city in Rockingham County, New Hampshire, United States.
• Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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.

Facts about Sofia Airport Vrazhdebna (SOF):

• According to the plan a new Sofia airport terminal was built to the east of the old terminal and a second runway was constructed alongside the existing one.
• 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.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• 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 handled 350,432 passengers last year.
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• 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 closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• 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.