Nonstop flight route between Union Island, Saint Vincent and the Grenadines and Siuna, Nicaragua:
Departure Airport:

Arrival Airport:

Distance from UNI to SIU:
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- About this route
- UNI Airport Information
- SIU Airport Information
- Facts about UNI
- Facts about SIU
- 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 SIU
- List of Nearest Airports to SIU
- Map of Furthest Airports from SIU
- List of Furthest Airports from SIU
About this route:
A direct, nonstop flight between Union Island Airport (UNI), Union Island, Saint Vincent and the Grenadines and Siuna Airport (SIU), Siuna, Nicaragua would travel a Great Circle distance of 1,573 miles (or 2,532 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 Union Island Airport and Siuna Airport, the route shown on this map most likely still appears to be a straight line.
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: | SIU / MNSI |
Airport Name: | Siuna Airport |
Location: | Siuna, Nicaragua |
GPS Coordinates: | 13°43'0"N by 84°46'36"W |
Operator/Owner: | Republica de Nicaragua |
Airport Type: | Public |
Elevation: | 480 feet (146 meters) |
# of Runways: | 1 |
View all routes: | Routes from SIU |
More Information: | SIU Maps & Info |
Facts about Union Island Airport (UNI):
- 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.
- Union Island Airport (UNI) currently has only 1 runway.
- 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.
- The closest airport to Union Island Airport (UNI) is Canouan Airport (CIW), which is located only 8 miles (14 kilometers) NE of UNI.
Facts about Siuna Airport (SIU):
- Because of Siuna Airport's relatively low elevation of 480 feet, planes can take off or land at Siuna 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.
- Siuna Airport (SIU) currently has only 1 runway.
- The furthest airport from Siuna Airport (SIU) is Cocos (Keeling) Island Airport (CCK), which is nearly antipodal to Siuna Airport (meaning Siuna Airport is almost on the exact opposite side of the Earth from Cocos (Keeling) Island Airport), and is located 12,286 miles (19,772 kilometers) away in Cocos Islands, Australia.
- The closest airport to Siuna Airport (SIU) is Bonanza Airport (BZA), which is located 25 miles (39 kilometers) NNE of SIU.