Nonstop flight route between Union Island, Saint Vincent and the Grenadines and Sault Ste. Marie, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from UNI to INR:
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- About this route
- UNI Airport Information
- INR Airport Information
- Facts about UNI
- Facts about INR
- 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 INR
- List of Nearest Airports to INR
- Map of Furthest Airports from INR
- List of Furthest Airports from INR
About this route:
A direct, nonstop flight between Union Island Airport (UNI), Union Island, Saint Vincent and the Grenadines and Kincheloe Air Force Base (INR), Sault Ste. Marie, Michigan, United States would travel a Great Circle distance of 2,686 miles (or 4,323 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 Kincheloe 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 Kincheloe 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: | INR / |
Airport Name: | Kincheloe Air Force Base |
Location: | Sault Ste. Marie, Michigan, United States |
GPS Coordinates: | 46°15'2"N by 84°28'20"W |
View all routes: | Routes from INR |
More Information: | INR 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.
- 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.
Facts about Kincheloe Air Force Base (INR):
- The closest airport to Kincheloe Air Force Base (INR) is Chippewa County International Airport (CIU), which is located only 0 mile (0 kilometer) N of INR.
- The mission of Kinross AAF was to serve as a refueling stop for aircraft headed for Alaska as well as to defend the locks of Sault Ste.
- The 438th Fighter-Interceptor Squadron was upgraded again to the F-106 Delta Dart interceptor in June 1960, one of the first ADC squadrons to receive the new interceptor.
- The furthest airport from Kincheloe Air Force Base (INR) is Margaret River Airport (MGV), which is located 11,103 miles (17,869 kilometers) away in Margaret River, Western Australia, Australia.
- The 449th and its subordinate units' mission was to operate at full readiness, and support activities included aircraft and vehicle maintenance, bombing crew and unit training, and air refueling support.
- Kinross was considered a vital Air Defense Command base, an alert-status military base equipped with interceptors ready 24/7 to respond to unknown aircraft picked up by Ground Control Radar stations in the Great Lakes region.
- As a result of the phase down, ADC moved the 438th Fighter Interceptor Squadron to Griffiss AFB, New York.