Nonstop flight route between Grantsburg, Wisconsin, United States and Georgetown, Ascension Island, Saint Helena:
Departure Airport:

Arrival Airport:

Distance from GTG to ASI:
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- About this route
- GTG Airport Information
- ASI Airport Information
- Facts about GTG
- Facts about ASI
- Map of Nearest Airports to GTG
- List of Nearest Airports to GTG
- Map of Furthest Airports from GTG
- List of Furthest Airports from GTG
- Map of Nearest Airports to ASI
- List of Nearest Airports to ASI
- Map of Furthest Airports from ASI
- List of Furthest Airports from ASI
About this route:
A direct, nonstop flight between Grantsburg Municipal Airport (GTG), Grantsburg, Wisconsin, United States and RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena would travel a Great Circle distance of 6,056 miles (or 9,746 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 Grantsburg Municipal Airport and RAF Ascension, 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 Grantsburg Municipal Airport and RAF Ascension. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | GTG / KGTG |
Airport Name: | Grantsburg Municipal Airport |
Location: | Grantsburg, Wisconsin, United States |
GPS Coordinates: | 45°47'53"N by 92°39'51"W |
Area Served: | Grantsburg, Wisconsin |
Operator/Owner: | Village of Grantsburg |
Airport Type: | Public |
Elevation: | 927 feet (283 meters) |
# of Runways: | 2 |
View all routes: | Routes from GTG |
More Information: | GTG Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ASI / FHAW |
Airport Names: |
|
Location: | Georgetown, Ascension Island, Saint Helena |
GPS Coordinates: | 7°58'9"S by 14°23'38"W |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from ASI |
More Information: | ASI Maps & Info |
Facts about Grantsburg Municipal Airport (GTG):
- The closest airport to Grantsburg Municipal Airport (GTG) is L.O. Simenstad Municipal Airport (OEO), which is located 34 miles (54 kilometers) S of GTG.
- Because of Grantsburg Municipal Airport's relatively low elevation of 927 feet, planes can take off or land at Grantsburg Municipal 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.
- Grantsburg Municipal Airport (GTG) has 2 runways.
- The furthest airport from Grantsburg Municipal Airport (GTG) is Margaret River Airport (MGV), which is located 10,764 miles (17,323 kilometers) away in Margaret River, Western Australia, Australia.
Facts about RAF Ascension (ASI):
- Ascension serves as a diversion airport for ETOPS aircraft crossing the Atlantic.
- The NASA Tracking Station at Devil's Ashpit and the Cable & Wireless Earth Station at Donkey Plain were built in the "mid-sixties" for space operations and communications, including the latter's use for transmitting "microwave borne data via the Early Bird Satellite back to the NASA facility at Andover, Maine.
- The furthest airport from RAF Ascension (ASI) is Ujae Airport (UJE), which is nearly antipodal to RAF Ascension (meaning RAF Ascension is almost on the exact opposite side of the Earth from Ujae Airport), and is located 12,370 miles (19,907 kilometers) away in Ujae Atoll, Marshall Islands.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
- The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.