Nonstop flight route between Astoria, Oregon, United States and Tresco, Isles of Scilly, United Kingdom:
Departure Airport:

Arrival Airport:

Distance from AST to TSO:
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- About this route
- AST Airport Information
- TSO Airport Information
- Facts about AST
- Facts about TSO
- Map of Nearest Airports to AST
- List of Nearest Airports to AST
- Map of Furthest Airports from AST
- List of Furthest Airports from AST
- Map of Nearest Airports to TSO
- List of Nearest Airports to TSO
- Map of Furthest Airports from TSO
- List of Furthest Airports from TSO
About this route:
A direct, nonstop flight between Astoria Regional Airport (AST), Astoria, Oregon, United States and Tresco Heliport (TSO), Tresco, Isles of Scilly, United Kingdom would travel a Great Circle distance of 4,820 miles (or 7,757 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 Astoria Regional Airport and Tresco Heliport, 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 Astoria Regional Airport and Tresco Heliport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | AST / KAST |
Airport Name: | Astoria Regional Airport |
Location: | Astoria, Oregon, United States |
GPS Coordinates: | 46°9'29"N by 123°52'42"W |
Area Served: | Astoria, Oregon |
Operator/Owner: | Port of Astoria |
Airport Type: | Public |
Elevation: | 15 feet (5 meters) |
# of Runways: | 2 |
View all routes: | Routes from AST |
More Information: | AST Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | TSO / EGHT |
Airport Name: | Tresco Heliport |
Location: | Tresco, Isles of Scilly, United Kingdom |
GPS Coordinates: | 49°56'44"N by 6°19'53"W |
Operator/Owner: | Tresco Estates |
Airport Type: | Public |
Elevation: | 20 feet (6 meters) |
View all routes: | Routes from TSO |
More Information: | TSO Maps & Info |
Facts about Astoria Regional Airport (AST):
- The furthest airport from Astoria Regional Airport (AST) is Tôlanaro Airport (FTU), which is located 10,892 miles (17,529 kilometers) away in Tôlanaro, Madagascar.
- Because of Astoria Regional Airport's relatively low elevation of 15 feet, planes can take off or land at Astoria Regional 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 closest airport to Astoria Regional Airport (AST) is Southwest Washington Regional Airport (KLS), which is located 47 miles (76 kilometers) E of AST.
- Astoria Regional Airport covers 870 acres at an elevation of 15 feet.
- Federal Aviation Administration records say the airport had 1,851 passenger boardings in calendar year 2008, 1,531 in 2009 and 3,482 in 2010.
- Astoria Regional Airport (AST) has 2 runways.
Facts about Tresco Heliport (TSO):
- The closest airport to Tresco Heliport (TSO) is St Mary's Airport (ISC), which is located only 3 miles (5 kilometers) SE of TSO.
- Tresco Heliport was opened by John King, Baron King of Wartnaby, Chairman of British Airways, on 26 April 1983.
- Because of Tresco Heliport's relatively low elevation of 20 feet, planes can take off or land at Tresco Heliport 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 Tresco Heliport (TSO) is Dunedin International Airport (DUD), which is nearly antipodal to Tresco Heliport (meaning Tresco Heliport is almost on the exact opposite side of the Earth from Dunedin International Airport), and is located 12,116 miles (19,499 kilometers) away in Dunedin, Otago, New Zealand.
- Tresco's principal industry is tourism, and the heliport supported this by enabling scheduled helicopter service to and from the mainland.