Nonstop flight route between Rapid City, South Dakota, United States and Impfondo, Republic of the Congo:

About this route:

A direct, nonstop flight between Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States and Impfondo Airport (ION), Impfondo, Republic of the Congo would travel a Great Circle distance of 7,640 miles (or 12,295 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 Ellsworth Air Force Base and Impfondo 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 Ellsworth Air Force Base and Impfondo 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 Ellsworth Air Force Base (RCA):

• An AN/MPS-14 height-finder radar was added in 1956.
• The installation changed names a few more times during its early years.
• On 1 June 1992, as part of the first major reorganization since the creation of USAF, the Air Force inactivated Strategic Air Command and assigned Ellsworth's organizations ) to the newly activated Air Combat Command.
• After the Army closed their facilities, the military housing at the Nike Integrated Fire Control sites was transferred to control of Ellsworth, and was used as Air Force military family housing until about 1990.
• Rapid City AAF was assigned to the 17th Bombardment Training Wing, II Bomber Command.
• In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
• To provide air defense of the base, the United States Army established the Ellsworth AFB Defense Area in 1957 and constructed Nike-Ajax Surface-to-air missile sites for air defense.
• 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.
• 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.

Facts about Impfondo Airport (ION):

• The closest airport to Impfondo Airport (ION) is Bétou Airport (BTB), which is located 106 miles (170 kilometers) NNE of ION.
• The furthest airport from Impfondo Airport (ION) is Cassidy International Airport (CXI), which is nearly antipodal to Impfondo Airport (meaning Impfondo Airport is almost on the exact opposite side of the Earth from Cassidy International Airport), and is located 12,034 miles (19,367 kilometers) away in Christmas Island, Kiribati.