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

Arrival Airport:

Distance from ION to RCA:
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- About this route
- ION Airport Information
- RCA Airport Information
- Facts about ION
- Facts about RCA
- Map of Nearest Airports to ION
- List of Nearest Airports to ION
- Map of Furthest Airports from ION
- List of Furthest Airports from ION
- Map of Nearest Airports to RCA
- List of Nearest Airports to RCA
- Map of Furthest Airports from RCA
- List of Furthest Airports from RCA
About this route:
A direct, nonstop flight between Impfondo Airport (ION), Impfondo, Republic of the Congo and Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States 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 Impfondo 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 Impfondo 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:
IATA / ICAO Codes: | ION / FCOI |
Airport Name: | Impfondo Airport |
Location: | Impfondo, Republic of the Congo |
GPS Coordinates: | 1°35'21"N by 18°2'42"E |
Area Served: | Impfondo, Republic of the Congo |
Elevation: | 1099 feet (335 meters) |
View all routes: | Routes from ION |
More Information: | ION Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | RCA / KRCA |
Airport Names: |
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Location: | Rapid City, South Dakota, United States |
GPS Coordinates: | 44°8'47"N by 103°4'28"W |
View all routes: | Routes from RCA |
More Information: | RCA Maps & Info |
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.
Facts about Ellsworth Air Force Base (RCA):
- 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.
- In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
- Air Defense Command activated the 740th Aircraft Control and Warning Squadron at Rapid City AFB on 1 February 1953 under the ADC 31st Air Division.
- 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.
- The 740th AC&W Squadron began operations in 1955 with AN/MPS-7 search radar, and initially the station functioned as a Ground-Control Intercept and warning station.
- 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.