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

About this route:

A direct, nonstop flight between Pierre Regional Airport (PIR), Pierre, South Dakota, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria 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 Pierre Regional 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 Pierre Regional 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 Pierre Regional Airport (PIR):

• 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.
• Until June 30, 2006, service on Great Lakes Airlines to Denver was subsidized by the Essential Air Service program.
• Pierre Regional Airport (PIR) has 2 runways.
• 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.
• In addition to being known as "Pierre Regional Airport", another name for PIR is "Pierre Army Airfield".
• The closest airport to Pierre Regional Airport (PIR) is Mobridge Municipal Airport (MBG), which is located 81 miles (130 kilometers) N of PIR.

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 airport was initially built in the late 1930s on a site 6.3 km by road then.
• On 31 August 2006, Sofia Airport put its new runway system into operation, replacing the old and out-of-date facilities.
• 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.
• 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.
• The closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• In addition to being known as "Sofia Airport Vrazhdebna", other names for SOF include "Vrazhdebna Airport" and "Летище София".
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• 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.
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.