Nonstop flight route between Roskilde (near Copenhagen), Denmark and Great Falls, Montana, United States:

About this route:

A direct, nonstop flight between Roskilde Airport (RKE), Roskilde (near Copenhagen), Denmark and Malmstrom Air Force Base (GFA), Great Falls, Montana, United States would travel a Great Circle distance of 4,596 miles (or 7,396 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 Roskilde Airport and Malmstrom Air Force Base, 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 Roskilde Airport and Malmstrom Air Force Base. 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 Roskilde Airport (RKE):

• 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.
• The closest airport to Roskilde Airport (RKE) is Copenhagen Airport, Kastrup (CPH), which is located 21 miles (33 kilometers) E of RKE.
• 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 (RKE) has 2 runways.
• In addition to being known as "Roskilde Airport", other names for RKE include "Københavns Lufthavn, Roskilde" and "Copenhagen Airport, Roskilde".
• 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.
• 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.

Facts about Malmstrom Air Force Base (GFA):

• DC-20 was initially under the Great Falls Air Defense Sector, established on 1 March 1959.
• The furthest airport from Malmstrom Air Force Base (GFA) is Sir Gaëtan Duval Airport (RRG), which is located 10,495 miles (16,891 kilometers) away in Rodrigues Island, Mauritius.
• Following World War II, Great Falls Army Air Base played an important role in US defense during the Cold War era.
• The base's runway was closed on 31 December 1996 for aircraft operations.
• The closest airport to Malmstrom Air Force Base (GFA) is Great Falls International Airport (GTF), which is located only 9 miles (14 kilometers) W of GFA.
• In 1957, under the control of the 801st Aircraft Control and Warning Squadron, the Malmstrom AFB radar station became operational with AN/FPS-20 search and AN/FPS-6 height-finder radars.
• On 1 July 1968, the F-101B equipped 29th FIS was inactivated and replaced by the F-106 Delta Dart equipped 71st Fighter-Interceptor Squadron, which was reassigned from Richards Gebaur AFB when its ADC mission was eliminated.
• At Great Falls, P-39 Airacobras, C-47 Skytrains, B-25 Mitchells, and A-20 Havocs aircraft.
• In addition to being known as "Malmstrom Air Force Base", another name for GFA is "Malmstrom AFB".
• Originally named Great Falls Army Air Base, later Great Falls Air Force Base, the facility was renamed Malmstrom Air Force Base on 1 October 1955 in honor of Colonel Einar Axel Malmstrom.