Nonstop flight route between Boise, Idaho, United States and Roskilde (near Copenhagen), Denmark:

About this route:

A direct, nonstop flight between Boise Airport (BOI), Boise, Idaho, United States and Roskilde Airport (RKE), Roskilde (near Copenhagen), Denmark would travel a Great Circle distance of 4,952 miles (or 7,970 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 Boise 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 Boise 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 Boise Airport (BOI):

• The tower and TRACON opened September 16, 2013 and features updated electronics and equipment, including the STARS radar system.
• Boise is a landing rights airfield requiring international general aviation flights to receive permission from a Customs and Border Protection officer before landing.
• During World War II the Army Air Corps, later Army Air Forces, leased the field for use a training base for B-17 Flying Fortress and B-24 Liberator bomber crews.
• The closest airport to Boise Airport (BOI) is Mountain Home Air Force Base (MUO), which is located 40 miles (64 kilometers) SSE of BOI.
• The furthest airport from Boise Airport (BOI) is Tôlanaro Airport (FTU), which is located 10,843 miles (17,451 kilometers) away in Tôlanaro, Madagascar.
• Boise Airport (BOI) has 3 runways.
• The Boise Airport was fourth in passenger satisfaction in the J.D.
• In addition to being known as "Boise Airport", other names for BOI include "Boise Air Terminal" and "Gowen Field".
• Boise Airport covers an area of 5,000 acres at an elevation of 2,871 feet above mean sea level.
• Gowen Field Air National Guard Base primarily refers to the military facilities on the south side of the runways, which includes Air National Guard, Army National Guard, and reserve units of the Army, Navy, and Marine Corps.
• Boise Airport is a joint civil-military airport three miles south of Boise in Ada County, Idaho.
• The Boise Airport was a hub for Horizon Air from the late 1980s to the early 2000s with over 50 flights to 15 destinations at its peak, but was scaled down post 9/11.

Facts about Roskilde Airport (RKE):

• In addition to being known as "Roskilde Airport", other names for RKE include "Københavns Lufthavn, Roskilde" and "Copenhagen Airport, Roskilde".
• A small Danish Air Force installation is located adjacent to the airport, called Flyvestation Skalstrup.
• 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.
• 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.
• 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.
• Roskilde Airport is planning an expansion of the runways and airport facilities to receive regular flights of low-cost international and charter operators, including aircraft types of Boeing 737 and Airbus A320-family sizes.