Nonstop flight route between Union Island, Saint Vincent and the Grenadines and Moses Lake, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from UNI to MWH:
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- About this route
- UNI Airport Information
- MWH Airport Information
- Facts about UNI
- Facts about MWH
- 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 MWH
- List of Nearest Airports to MWH
- Map of Furthest Airports from MWH
- List of Furthest Airports from MWH
About this route:
A direct, nonstop flight between Union Island Airport (UNI), Union Island, Saint Vincent and the Grenadines and Grant County International Airport (MWH), Moses Lake, Washington, United States would travel a Great Circle distance of 4,089 miles (or 6,581 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 Grant County International 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 Union Island Airport and Grant County International Airport. 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: | MWH / KMWH |
Airport Name: | Grant County International Airport |
Location: | Moses Lake, Washington, United States |
GPS Coordinates: | 47°12'30"N by 119°19'9"W |
Area Served: | Moses Lake, Washington |
Operator/Owner: | Port of Moses Lake |
Airport Type: | Public |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 5 |
View all routes: | Routes from MWH |
More Information: | MWH Maps & Info |
Facts about Union Island Airport (UNI):
- Union Island Airport (UNI) currently has only 1 runway.
- The closest airport to Union Island Airport (UNI) is Canouan Airport (CIW), which is located only 8 miles (14 kilometers) NE of 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.
- 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.
Facts about Grant County International Airport (MWH):
- Grant County International Airport (MWH) has 5 runways.
- The closest airport to Grant County International Airport (MWH) is Ephrata Municipal Airport (EPH), which is located only 12 miles (19 kilometers) NW of MWH.
- The furthest airport from Grant County International Airport (MWH) is Tôlanaro Airport (FTU), which is located 10,730 miles (17,268 kilometers) away in Tôlanaro, Madagascar.
- Opened as a training airfield during World War II, the facility was operated by the U.S.
- In 2011, the 92nd Air Refueling Wing at Fairchild AFB in Spokane temporarily moved its KC-135 R/T fleet and operations to Moses Lake while Fairchild's runway underwent reconstruction and other infrastructure improvements, to include an upgrade to the base's aviation fuel distribution system.