Nonstop flight route between Tresco, Isles of Scilly, United Kingdom and SeaTac (near Seattle and Tacoma), Washington, United States:

About this route:

A direct, nonstop flight between Tresco Heliport (TSO), Tresco, Isles of Scilly, United Kingdom and Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States would travel a Great Circle distance of 4,704 miles (or 7,571 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 Seattle–Tacoma 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 Tresco Heliport and Seattle–Tacoma International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

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.
• 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.
• 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.
• 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.

Facts about Seattle–Tacoma International Airport (SEA):

• Seattle–Tacoma International Airport (SEA) has 3 runways.
• Seattle's Central Link light-rail line serves the airport at the SeaTac/Airport Station, which opened on December 19, 2009.
• The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
• A recurring problem at the airport is misidentification of the westernmost taxiway, Taxiway Tango, as a runway.
• Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
• In 2007 the airport, together with the University of Illinois Center of Excellence for Airport Technology, became the first airport to implement an avian radar system providing 24-hour monitoring of wildlife activity across the airfield.
• The Seattle–Tacoma International Airport, also known as Sea–Tac Airport or Sea–Tac /ˈsiːtæk/, is an American airport.
• The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma 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 2013, the airport served over 34.7 million passengers, making it the 15th-busiest airport in the United States.
• Residents of the surrounding area filed lawsuits against the Port in the early 1970s, complaining of noise, vibration, smoke, and other problems.