Nonstop flight route between St Mary's, Isles of Scilly, United Kingdom and Thorne Bay, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from ISC to KTB:
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- About this route
- ISC Airport Information
- KTB Airport Information
- Facts about ISC
- Facts about KTB
- Map of Nearest Airports to ISC
- List of Nearest Airports to ISC
- Map of Furthest Airports from ISC
- List of Furthest Airports from ISC
- Map of Nearest Airports to KTB
- List of Nearest Airports to KTB
- Map of Furthest Airports from KTB
- List of Furthest Airports from KTB
About this route:
A direct, nonstop flight between St Mary's Airport (ISC), St Mary's, Isles of Scilly, United Kingdom and Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States would travel a Great Circle distance of 4,514 miles (or 7,265 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 St Mary's Airport and Thorne Bay 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 St Mary's Airport and Thorne Bay 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: | ISC / EGHE |
Airport Names: |
|
Location: | St Mary's, Isles of Scilly, United Kingdom |
GPS Coordinates: | 49°54'47"N by 6°17'30"W |
Area Served: | Isles of Scilly |
Operator/Owner: | Council of the Isles of Scilly |
Airport Type: | Public |
Elevation: | 116 feet (35 meters) |
# of Runways: | 2 |
View all routes: | Routes from ISC |
More Information: | ISC Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | KTB / |
Airport Name: | Thorne Bay Seaplane Base |
Location: | Thorne Bay, Alaska, United States |
GPS Coordinates: | 55°41'17"N by 132°32'12"W |
Area Served: | Thorne Bay, 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 KTB |
More Information: | KTB Maps & Info |
Facts about St Mary's Airport (ISC):
- The furthest airport from St Mary's Airport (ISC) is Dunedin International Airport (DUD), which is nearly antipodal to St Mary's Airport (meaning St Mary's Airport is almost on the exact opposite side of the Earth from Dunedin International Airport), and is located 12,117 miles (19,501 kilometers) away in Dunedin, Otago, New Zealand.
- In February 2014, the Council of the Isles of Scilly approved a plan to share the management of St Mary's Airport with Westward Airways, who operate Land's End Airport.
- Because of St Mary's Airport's relatively low elevation of 116 feet, planes can take off or land at St Mary's 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 May 2013, the Isles of Scilly Steamship Company and the Council of the Isles of Scilly submitted a joint bid for finance from the European Regional Development Fund for improvements to the terminal, new lighting and navigational systems and runway resurfacing, together with runway resurfacing at Land's End Airport.
- The closest airport to St Mary's Airport (ISC) is Tresco Heliport (TSO), which is located only 3 miles (5 kilometers) NW of ISC.
- The current 600m asphalt runway, 15/33, was built in 1991.
- Mayflower Air Services started services to the airport in 1961.
- St Mary's Airport handled 89,170 passengers last year.
- St Mary's Airport (ISC) has 2 runways.
- In addition to being known as "St Mary's Airport", other names for ISC include "Isles of Scilly Airport" and "Scilly Isles/St Mary's Airport".
Facts about Thorne Bay Seaplane Base (KTB):
- The closest airport to Thorne Bay Seaplane Base (KTB) is Hollis Clark Bay Seaplane Base (HYL), which is located only 14 miles (23 kilometers) SSW of KTB.
- Thorne Bay Seaplane Base (KTB) currently has only 1 runway.
- The furthest airport from Thorne Bay Seaplane Base (KTB) is Port Alfred Airport (AFD), which is located 10,618 miles (17,088 kilometers) away in Port Alfred, South Africa.
- Thorne Bay Seaplane Base is a state-owned public-use seaplane base serving Thorne Bay, a community in the Prince of Wales-Hyder Census Area of the U.S.
- Because of Thorne Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Thorne Bay 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.
- Thorne Bay Seaplane Base has one seaplane landing area designated NW/SE with a water surface measuring 5,000 by 2,000 feet.