Nonstop flight route between Sønderborg, Denmark and Grand Forks, North Dakota, United States:

About this route:

A direct, nonstop flight between Sønderborg Airport (SGD), Sønderborg, Denmark and Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States would travel a Great Circle distance of 4,171 miles (or 6,712 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 Sønderborg Airport and Grand Forks 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 Sønderborg Airport and Grand Forks 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 Sønderborg Airport (SGD):

• Because of Sønderborg Airport's relatively low elevation of 24 feet, planes can take off or land at Sønderborg 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.
• Sønderborg Airport (SGD) currently has only 1 runway.
• The furthest airport from Sønderborg Airport (SGD) is Chatham Islands (CHT), which is located 11,617 miles (18,696 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In addition to being known as "Sønderborg Airport", another name for SGD is "Sønderborg Lufthavn".
• The closest airport to Sønderborg Airport (SGD) is Vojens Airport (SKS), which is located 28 miles (45 kilometers) NW of SGD.

Facts about Grand Forks Air Force Base (RDR):

• Survey teams selected sites in flat wheatlands close to the Canada-Minnesota border, north-northwest of Grand Forks.
• In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
• The closest airport to Grand Forks Air Force Base (RDR) is Grand Forks International Airport (GFK), which is located only 10 miles (17 kilometers) E of RDR.
• On 18 February 1957, the 478th Fighter Group was activated at Grand Forks.
• The furthest airport from Grand Forks Air Force Base (RDR) is Margaret River Airport (MGV), which is located 10,504 miles (16,904 kilometers) away in Margaret River, Western Australia, Australia.
• The DC-11 SAGE blockhouse was later the headquarters of the SAC 321st Strategic Missile Wing.
• In 1971, the 18th Fighter-Interceptor Squadron was inactivated and the 460th Fighter-Interceptor Squadron replaced the unit.
• The 4133d SW was redesignated as the 319th Bombardment Wing on 1 February 1963 in a name-only redesigation and was assigned to SAC's Second Air Force, 810th Strategic Aerospace Division.
• Due to the continuance of the Cold War between the United States and the Soviet Union, GFAFB was originally an Air Defense Command fighter-interceptor air base.
• On 1 November 1964, 321st Strategic Missile Wing was organized as the Minuteman II intercontinental ballistic missile wing at GFAFB, the first in SAC.