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

Arrival Airport:

Distance from TSO to EXI:
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- About this route
- TSO Airport Information
- EXI Airport Information
- Facts about TSO
- Facts about EXI
- 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 EXI
- List of Nearest Airports to EXI
- Map of Furthest Airports from EXI
- List of Furthest Airports from EXI
About this route:
A direct, nonstop flight between Tresco Heliport (TSO), Tresco, Isles of Scilly, United Kingdom and Excursion Inlet Seaplane Base (EXI), Excursion Inlet, Alaska, United States would travel a Great Circle distance of 4,417 miles (or 7,109 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 Excursion Inlet 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 Tresco Heliport and Excursion Inlet 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: | 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: | EXI / |
Airport Name: | Excursion Inlet Seaplane Base |
Location: | Excursion Inlet, Alaska, United States |
GPS Coordinates: | 58°25'14"N by 135°26'57"W |
Area Served: | Excursion Inlet, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Southeast Region |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from EXI |
More Information: | EXI Maps & Info |
Facts about Tresco Heliport (TSO):
- 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.
- Tresco Heliport was opened by John King, Baron King of Wartnaby, Chairman of British Airways, on 26 April 1983.
- 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.
- Tresco's principal industry is tourism, and the heliport supported this by enabling scheduled helicopter service to and from the mainland.
- 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.
Facts about Excursion Inlet Seaplane Base (EXI):
- Excursion Inlet Seaplane Base (EXI) currently has only 1 runway.
- The furthest airport from Excursion Inlet Seaplane Base (EXI) is Port Elizabeth International Airport (PLZ), which is located 10,536 miles (16,956 kilometers) away in Port Elizabeth, South Africa.
- Because of Excursion Inlet Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Excursion Inlet 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 closest airport to Excursion Inlet Seaplane Base (EXI) is Gustavus Airport (GST), which is located only 9 miles (15 kilometers) W of EXI.
- Excursion Inlet Seaplane Base has one seaplane landing area designated NW/SE with a water surface measuring 1,000 by 1,000 feet.