Nonstop flight route between Hayden, Colorado, United States and Roskilde (near Copenhagen), Denmark:

About this route:

A direct, nonstop flight between Yampa Valley Airport (HDN), Hayden, Colorado, United States and Roskilde Airport (RKE), Roskilde (near Copenhagen), Denmark would travel a Great Circle distance of 4,909 miles (or 7,900 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 Roskilde 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 Yampa Valley Airport and Roskilde 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 Yampa Valley Airport (HDN):

• Yampa Valley Airport (HDN) currently has only 1 runway.
• 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.
• 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".
• Yampa Valley Airport is a county owned, public airport in Routt County, Colorado, two miles southeast of Hayden and about 25 miles west of Steamboat Springs.
• 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.
• Other airlines that have served the airport include Continental Airlines, Northwest Airlines and Pacific Southwest Airlines.
• The airport is in the National Plan of Integrated Airport Systems for 2011–2015, which called it a primary commercial service airport.Federal Aviation Administration records say it had 136,600 passenger boardings in calendar year 2008, 122,480 in 2009 and 110,044 in 2010.

Facts about Roskilde Airport (RKE):

• A small Danish Air Force installation is located adjacent to the airport, called Flyvestation Skalstrup.
• The airport is open around the clock and has immigration and customs facilities for international traffic, but it is used primarily for taxi, business, and training flights and the airport serves as base for several flights schools.
• Because of Roskilde Airport's relatively low elevation of 146 feet, planes can take off or land at Roskilde 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 Roskilde Airport (RKE) is Chatham Islands (CHT), which is located 11,539 miles (18,570 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• Lately Roskilde Airport has been the departure airport of Danish troops deploying to or returning from overseas locations, primarily Afghanistan, due to its more private and secluded atmosphere, compared to the far busier Copenhagen Airport, Kastrup.
• In addition to being known as "Roskilde Airport", other names for RKE include "Københavns Lufthavn, Roskilde" and "Copenhagen Airport, Roskilde".
• The closest airport to Roskilde Airport (RKE) is Copenhagen Airport, Kastrup (CPH), which is located 21 miles (33 kilometers) E of RKE.
• Roskilde Airport (RKE) has 2 runways.