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

Arrival Airport:

Distance from TSO to TNK:
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- About this route
- TSO Airport Information
- TNK Airport Information
- Facts about TSO
- Facts about TNK
- Map of Nearest Airports to TSO
- List of Nearest Airports to TSO
- Map of Furthest Airports from TSO
- List of Furthest Airports from TSO
- Map of Nearest Airports to TNK
- List of Nearest Airports to TNK
- Map of Furthest Airports from TNK
- List of Furthest Airports from TNK
About this route:
A direct, nonstop flight between Tresco Heliport (TSO), Tresco, Isles of Scilly, United Kingdom and Tununak Airport (TNK), Tununak, Alaska, United States would travel a Great Circle distance of 4,711 miles (or 7,581 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 Tresco Heliport and Tununak 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 Tresco Heliport and Tununak Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | TNK / |
Airport Names: |
|
Location: | Tununak, Alaska, United States |
GPS Coordinates: | 60°34'32"N by 165°16'18"W |
Area Served: | Tununak, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 14 feet (4 meters) |
# of Runways: | 1 |
View all routes: | Routes from TNK |
More Information: | TNK Maps & Info |
Facts about Tresco Heliport (TSO):
- Tresco's principal industry is tourism, and the heliport supported this by enabling scheduled helicopter service to and from the mainland.
- The closest airport to Tresco Heliport (TSO) is St Mary's Airport (ISC), which is located only 3 miles (5 kilometers) SE of TSO.
- 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.
- On summer weekdays the heliport received up to six flights a day from Penzance Heliport on the mainland, declining to two services a day in winter.
- 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.
Facts about Tununak Airport (TNK):
- Tununak Airport has one runway designated 8/26 with a gravel surface measuring 1,778 by 30 feet.
- In addition to being known as "Tununak Airport", another name for TNK is "4KA".
- The closest airport to Tununak Airport (TNK) is Toksook Bay Airport (OOK), which is located only 7 miles (11 kilometers) ESE of TNK.
- Because of Tununak Airport's relatively low elevation of 14 feet, planes can take off or land at Tununak 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 furthest airport from Tununak Airport (TNK) is Cape Town International Airport (CPT), which is located 10,590 miles (17,043 kilometers) away in Cape Town, South Africa.
- Tununak Airport (TNK) currently has only 1 runway.