Nonstop flight route between San Juan Island, Washington, United States and Roskilde (near Copenhagen), Denmark:

About this route:

A direct, nonstop flight between Roche Harbor Seaplane Base (RCE), San Juan Island, Washington, United States and Roskilde Airport (RKE), Roskilde (near Copenhagen), Denmark would travel a Great Circle distance of 4,789 miles (or 7,707 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 Roche Harbor Seaplane Base 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 Roche Harbor Seaplane Base 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 Roche Harbor Seaplane Base (RCE):

• The furthest airport from Roche Harbor Seaplane Base (RCE) is Tôlanaro Airport (FTU), which is located 10,722 miles (17,256 kilometers) away in Tôlanaro, Madagascar.
• In addition to being known as "Roche Harbor Seaplane Base", another name for RCE is "W39".
• Roche Harbor Seaplane Base (RCE) has 2 runways.
• The closest airport to Roche Harbor Seaplane Base (RCE) is Friday Harbor Seaplane Base (FBS), which is located only 8 miles (14 kilometers) SE of RCE.
• Because of Roche Harbor Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Roche Harbor Seaplane Base 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.

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.
• 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.
• Bus and train services from around the country to the nearby town of Roskilde are extensive, but bus services to and from the airport are infrequent due to its limited use, and the primary means of getting to/from the airport is by own car or taxi.
• 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.
• Roskilde Airport (RKE) has 2 runways.