Nonstop flight route between Roskilde (near Copenhagen), Denmark and Salem, Illinois, United States:

About this route:

A direct, nonstop flight between Roskilde Airport (RKE), Roskilde (near Copenhagen), Denmark and Salem–Leckrone Airport (SLO), Salem, Illinois, United States would travel a Great Circle distance of 4,458 miles (or 7,174 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 Salem–Leckrone 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 Roskilde Airport and Salem–Leckrone 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 Roskilde Airport (RKE):

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

Facts about Salem–Leckrone Airport (SLO):

• The closest airport to Salem–Leckrone Airport (SLO) is Mt. Vernon Airport (MVN), which is located 23 miles (37 kilometers) SSE of SLO.
• The airport is named for Philip Leckrone, a flying instructor from Salem who fought in the Royal Air Force Eagle Squadrons during World War II.
• Salem–Leckrone Airport (SLO) currently has only 1 runway.
• Salem–Leckrone Airport is a public use airport located two nautical miles northwest of the central business district of Salem, a city in Marion County, Illinois, United States.
• Because of Salem–Leckrone Airport's relatively low elevation of 573 feet, planes can take off or land at Salem–Leckrone 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 Salem–Leckrone Airport (SLO) is Margaret River Airport (MGV), which is located 11,062 miles (17,802 kilometers) away in Margaret River, Western Australia, Australia.