Nonstop flight route between Kobuk, Alaska, United States and Rapid City, South Dakota, United States:

About this route:

A direct, nonstop flight between Kobuk Airport (OBU), Kobuk, Alaska, United States and Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States would travel a Great Circle distance of 2,502 miles (or 4,027 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 Kobuk Airport and Ellsworth 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 Kobuk Airport and Ellsworth 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 Kobuk Airport (OBU):

• Because of Kobuk Airport's relatively low elevation of 142 feet, planes can take off or land at Kobuk 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.
• In addition to being known as "Kobuk Airport", another name for OBU is "PAOB".
• The closest airport to Kobuk Airport (OBU) is Dahl Creek Airport (DCK), which is located only 2 miles (3 kilometers) N of OBU.
• The furthest airport from Kobuk Airport (OBU) is George Airport (GRJ), which is located 10,163 miles (16,356 kilometers) away in George, South Africa.
• For the 12-month period ending September 29, 2011, the airport had 5,000 aircraft operations, an average of 13 per day, 100% air taxi.
• Kobuk Airport (OBU) currently has only 1 runway.
• Kobuk Airport is a state owned, public use airport located in Kobuk, a city in the Northwest Arctic Borough of the U.S.

Facts about Ellsworth Air Force Base (RCA):

• The furthest airport from Ellsworth Air Force Base (RCA) is Sir Gaëtan Duval Airport (RRG), which is located 10,579 miles (17,026 kilometers) away in Rodrigues Island, Mauritius.
• In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
• The airfield was again temporarily shut down from September 1946 – March 1947 and underwent a major construction program to upgrade the temporary wartime facilities to that of a permanent base.
• The mission of the 28th Bomb Wing is to deliver decisive combat power for global response.
• An AN/MPS-14 height-finder radar was added in 1956.
• On 1 June 1971, SAC deactivated the 821st Strategic Aerospace Division and by October of that year, an upgraded LGM-30F Minuteman II also replaced the Minuteman I missiles.
• The closest airport to Ellsworth Air Force Base (RCA) is Rapid City Regional Airport (RAP), which is located only 7 miles (11 kilometers) S of RCA.