Nonstop flight route between Sofia, Bulgaria and Pierre, South Dakota, United States:

About this route:

A direct, nonstop flight between Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria and Pierre Regional Airport (PIR), Pierre, South Dakota, United States would travel a Great Circle distance of 5,490 miles (or 8,836 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 Pierre Regional 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 Pierre Regional 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):

• 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.
• 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.
• By the late 1970s, the terminal was handling in the region of three million passengers a year, a million of them on domestic routes.
• 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.
• In mid-2012 the airport will have one of the most modern and most beautiful airport towers in Europe.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• In 2004 Strabag demanded an additional 6 million euro due to rising steel prices.
• The project for the construction of a new airport control tower at Sofia Airport commenced on 16 June 2006 with a decision of the BULATSA Management Board.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• The infrastructure surrounding the building was expected to be completed in 2007.
• 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.

Facts about Pierre Regional Airport (PIR):

• Pierre Regional Airport (PIR) has 2 runways.
• The closest airport to Pierre Regional Airport (PIR) is Mobridge Municipal Airport (MBG), which is located 81 miles (130 kilometers) N of PIR.
• In addition to being known as "Pierre Regional Airport", another name for PIR is "Pierre Army Airfield".
• A new terminal has been designed, and construction began in late Spring, 2011.
• The furthest airport from Pierre Regional Airport (PIR) is Sir Gaëtan Duval Airport (RRG), which is located 10,493 miles (16,887 kilometers) away in Rodrigues Island, Mauritius.
• During World War II the airfield was used by the United States Army Air Forces by Air Technical Service Command as a maintenance and supply depot.