Nonstop flight route between Decatur, Illinois, United States and Rapid City, South Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from DEC to RCA:
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- About this route
- DEC Airport Information
- RCA Airport Information
- Facts about DEC
- Facts about RCA
- Map of Nearest Airports to DEC
- List of Nearest Airports to DEC
- Map of Furthest Airports from DEC
- List of Furthest Airports from DEC
- 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 Decatur Airport (DEC), Decatur, Illinois, United States and Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States would travel a Great Circle distance of 787 miles (or 1,266 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 Decatur Airport and Ellsworth Air Force Base, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | DEC / KDEC |
Airport Name: | Decatur Airport |
Location: | Decatur, Illinois, United States |
GPS Coordinates: | 39°50'3"N by 88°51'56"W |
Area Served: | Decatur, Illinois |
Operator/Owner: | Decatur Park District |
Airport Type: | Public |
Elevation: | 682 feet (208 meters) |
# of Runways: | 3 |
View all routes: | Routes from DEC |
More Information: | DEC 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 Decatur Airport (DEC):
- Decatur Airport covers 2,100 acres at an elevation of 682 feet.
- The Illinois Army National Guard has an Army Aviation Support Facility at the airport.
- Decatur Airport has a 24,000 square feet passenger terminal with airline counters, a restaurant, baggage claim area and car rental facility.
- The closest airport to Decatur Airport (DEC) is University of Illinois Willard Airport (CMI), which is located 34 miles (55 kilometers) ENE of DEC.
- Because of Decatur Airport's relatively low elevation of 682 feet, planes can take off or land at Decatur 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.
- Decatur Airport (DEC) has 3 runways.
- The furthest airport from Decatur Airport (DEC) is Margaret River Airport (MGV), which is located 11,056 miles (17,793 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Ellsworth Air Force Base (RCA):
- 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.
- In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
- On 15 July 1945, the 225th AAFBU was inactivated and Rapid City AAB was placed on standby status as the Army Air Forces began to demobilize.
- 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.
- 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.
- Ellsworth AFB is 10 miles east of Rapid City, S.D.
- 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.
- Rapid City AAB was reactivated on 11 October 1945 and was assigned to Continental Air Force.