Nonstop flight route between Hayden, Colorado, United States and Sofia, Bulgaria:

About this route:

A direct, nonstop flight between Yampa Valley Airport (HDN), Hayden, Colorado, United States and Sofia Airport Vrazhdebna (SOF), Sofia, Bulgaria would travel a Great Circle distance of 5,916 miles (or 9,521 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 Yampa Valley 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 Yampa Valley 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 Yampa Valley Airport (HDN):

• There is no Air Traffic Control Tower at the airport.
• Yampa Valley Airport (HDN) currently has only 1 runway.
• The closest airport to Yampa Valley Airport (HDN) is Craig–Moffat Airport (CIG), which is located only 16 miles (26 kilometers) W of HDN.
• In addition to being known as "Yampa Valley Airport", another name for HDN is "Yampa Valley Regional Airport".
• Because of Yampa Valley Airport's high elevation of 6,606 feet, planes must typically fly at a faster airspeed in order to takeoff or land at HDN. Combined with a high temperature, this could make HDN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Yampa Valley Airport (HDN) is Sir Gaëtan Duval Airport (RRG), which is located 10,901 miles (17,543 kilometers) away in Rodrigues Island, Mauritius.

Facts about Sofia Airport Vrazhdebna (SOF):

• Total cost of the project was planned at 200 million euros.
• In 2004 Strabag demanded an additional 6 million euro due to rising steel prices.
• 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 closest airport to Sofia Airport Vrazhdebna (SOF) is Plovdiv Airport (PDV), which is located 86 miles (138 kilometers) ESE of SOF.
• Sofia Airport Vrazhdebna (SOF) currently has only 1 runway.
• By the late 1970s, the terminal was handling in the region of three million passengers a year, a million of them on domestic routes.
• Sofia Airport Vrazhdebna handled 350,432 passengers last year.
• The new tower was officially opened on 7 December 2012.
• 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 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 new Sofia tower will be situated to the west of Terminal 2 and will be complementing the terminal building in architectural terms.