Nonstop flight route between Spearfish, South Dakota, United States and Grand Forks, North Dakota, United States:

About this route:

A direct, nonstop flight between Black Hills Airport (SPF), Spearfish, South Dakota, United States and Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States would travel a Great Circle distance of 388 miles (or 625 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 relatively short distance between Black Hills Airport and Grand Forks Air Force Base, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Black Hills Airport (SPF):

• The closest airport to Black Hills Airport (SPF) is Ellsworth Air Force Base (RCA), which is located 42 miles (67 kilometers) ESE of SPF.
• The furthest airport from Black Hills Airport (SPF) is Sir Gaëtan Duval Airport (RRG), which is located 10,576 miles (17,020 kilometers) away in Rodrigues Island, Mauritius.
• In addition to being known as "Black Hills Airport", another name for SPF is "Clyde Ice Field".
• Black Hills Airport (SPF) has 4 runways.

Facts about Grand Forks Air Force Base (RDR):

• In 1971, the 18th Fighter-Interceptor Squadron was inactivated and the 460th Fighter-Interceptor Squadron replaced the unit.
• On 1 September 1958, the Strategic Air Command established the 4133d Strategic Wing at Grand Forks as part of its plan to disperse its B-52 heavy bombers over a larger number of bases, thus making it more difficult for the Soviet Union to knock out the entire fleet with a surprise first strike.
• The 319th transitioned from B-52H to re-engined B-52G aircraft in 1983, and added the AGM-86 Air Launched Cruise Missile in 1984.
• During the Cold War, GFAFB was a major installation of the Strategic Air Command, with B-52 bombers, KC-135 tankers, and Minuteman intercontinental ballistic missiles.
• In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
• SAGE operations were extremely expansive and GFADS was inactivated on 1 December 1963, when it was merged with the Minot Air Defense Sector at Minot AFB to the west.
• 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.
• 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 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.