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

Arrival Airport:

Distance from ASI to HYG:
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- About this route
- ASI Airport Information
- HYG Airport Information
- Facts about ASI
- Facts about HYG
- Map of Nearest Airports to ASI
- List of Nearest Airports to ASI
- Map of Furthest Airports from ASI
- List of Furthest Airports from ASI
- Map of Nearest Airports to HYG
- List of Nearest Airports to HYG
- Map of Furthest Airports from HYG
- List of Furthest Airports from HYG
About this route:
A direct, nonstop flight between RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena and Hydaburg Seaplane Base (HYG), Hydaburg, Alaska, United States would travel a Great Circle distance of 7,774 miles (or 12,511 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 RAF Ascension and Hydaburg Seaplane 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 RAF Ascension and Hydaburg Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | HYG / PAHY |
Airport Name: | Hydaburg Seaplane Base |
Location: | Hydaburg, Alaska, United States |
GPS Coordinates: | 55°12'23"N by 132°49'41"W |
Area Served: | Hydaburg, Alaska |
Operator/Owner: | Alaska DOT&PF - Southeast Region |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from HYG |
More Information: | HYG Maps & Info |
Facts about RAF Ascension (ASI):
- The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
- The Target Tracking Radar Station was a Nike Zeus test facility for tracking reentry vehicles from Cape Canaveral missile launches.
- Wideawake Airfield was a US installation built in 1943 by arrangement with the British government.
- Ascension serves as a diversion airport for ETOPS aircraft crossing the Atlantic.
- 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".
Facts about Hydaburg Seaplane Base (HYG):
- The closest airport to Hydaburg Seaplane Base (HYG) is Waterfall Seaplane Base (KWF), which is located only 17 miles (28 kilometers) WNW of HYG.
- Because of Hydaburg Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hydaburg Seaplane Base 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 Hydaburg Seaplane Base (HYG) is Port Alfred Airport (AFD), which is located 10,651 miles (17,140 kilometers) away in Port Alfred, South Africa.
- Hydaburg Seaplane Base (HYG) currently has only 1 runway.