Nonstop flight route between Union Island, Saint Vincent and the Grenadines and Rapid City, South Dakota, United States:
Departure Airport:

Arrival Airport:

Distance from UNI to RCA:
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- About this route
- UNI Airport Information
- RCA Airport Information
- Facts about UNI
- Facts about RCA
- Map of Nearest Airports to UNI
- List of Nearest Airports to UNI
- Map of Furthest Airports from UNI
- List of Furthest Airports from UNI
- 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 Union Island Airport (UNI), Union Island, Saint Vincent and the Grenadines and Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States would travel a Great Circle distance of 3,285 miles (or 5,286 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 Union Island 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 Union Island 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: | UNI / TVSU |
Airport Name: | Union Island Airport |
Location: | Union Island, Saint Vincent and the Grenadines |
GPS Coordinates: | 12°35'54"N by 61°24'52"W |
Area Served: | Union Island |
Airport Type: | Public |
Elevation: | 14 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from UNI |
More Information: | UNI 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 Union Island Airport (UNI):
- The closest airport to Union Island Airport (UNI) is Canouan Airport (CIW), which is located only 8 miles (14 kilometers) NE of UNI.
- The furthest airport from Union Island Airport (UNI) is Umbu Mehang Kunda Airport (WGP), which is nearly antipodal to Union Island Airport (meaning Union Island Airport is almost on the exact opposite side of the Earth from Umbu Mehang Kunda Airport), and is located 12,203 miles (19,639 kilometers) away in Waingapu, Sumba, East Nusa Tenggara, Indonesia.
- Union Island Airport (UNI) currently has only 1 runway.
- Because of Union Island Airport's relatively low elevation of 14 feet, planes can take off or land at Union Island 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.
Facts about Ellsworth Air Force Base (RCA):
- Military organizations periodically upgrade manpower and machines from time to time to meet new national security requirements and Ellsworth Air Force Base's organizations were no exception.
- 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.
- 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.
- In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
- 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 October 1960, Ellsworth entered the "Space Age," with the activation of the 850th Strategic Missile Squadron, initially assigned to the 28 BMW.
- In March 1944, heavy bomber operational training ended and the 225th Army Air Force Base Unit began training of replacement personnel for deployed heavy bombardment units in the overseas combat theaters.
- An Army Air-Defense Command Post was established at Ellsworth in 1960 for Nike missile command-and-control functions.
- Ellsworth AFB is 10 miles east of Rapid City, S.D.