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

Arrival Airport:

Distance from ASI to PDX:
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- About this route
- ASI Airport Information
- PDX Airport Information
- Facts about ASI
- Facts about PDX
- 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 PDX
- List of Nearest Airports to PDX
- Map of Furthest Airports from PDX
- List of Furthest Airports from PDX
About this route:
A direct, nonstop flight between RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena and Portland International Airport (PDX), Portland, Oregon, United States would travel a Great Circle distance of 7,489 miles (or 12,053 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 Portland 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 RAF Ascension and Portland 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: | ASI / FHAW |
Airport Names: |
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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: | PDX / KPDX |
Airport Name: | Portland International Airport |
Location: | Portland, Oregon, United States |
GPS Coordinates: | 45°35'18"N by 122°35'50"W |
Area Served: | Portland metropolitan area |
Airport Type: | Public |
Elevation: | 30 feet (9 meters) |
# of Runways: | 3 |
View all routes: | Routes from PDX |
More Information: | PDX Maps & Info |
Facts about RAF Ascension (ASI):
- The Target Tracking Radar Station was a Nike Zeus test facility for tracking reentry vehicles from Cape Canaveral missile launches.
- The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
- 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.
- RAF Ascension Island was re-garrisoned by the RAF in 1982 and used extensively as a staging base during the Falklands War.
- Wideawake Airfield was a US installation built in 1943 by arrangement with the British government.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
- RAF Ascension, more commonly known as RAF Ascension Island, and sometimes known as Wideawake Airfield or Ascension Island Base, is a British Royal Air Force station on Ascension Island in the Atlantic Ocean, near the Equator.
Facts about Portland International Airport (PDX):
- Because of Portland International Airport's relatively low elevation of 30 feet, planes can take off or land at Portland International 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.
- In 1925 aviation proponents proposed an airport for Portland on Swan Island, northwest of downtown Portland on the Willamette River.
- By the 1980s, the terminal building began an extensive renovation in order to update PDX to meet future needs.
- The closest airport to Portland International Airport (PDX) is Portland-Troutdale Airport (TTD), which is located only 10 miles (16 kilometers) ESE of PDX.
- Meanwhile, local travel businesses had begun recruiting other carriers.
- The furthest airport from Portland International Airport (PDX) is Tôlanaro Airport (FTU), which is located 10,903 miles (17,546 kilometers) away in Tôlanaro, Madagascar.
- Portland International Airport handled 1,502,956 passengers last year.
- Portland International Airport (PDX) has 3 runways.
- Concourses A and B are given mostly to Alaska Airlines and Horizon Air.
- Swan Island Airport was officially named Portland Airport until the opening of the new airport.