Nonstop flight route between Seattle, Washington, United States and St Mary's, Isles of Scilly, United Kingdom:

About this route:

A direct, nonstop flight between King County International Airport (BFI), Seattle, Washington, United States and St Mary's Airport (ISC), St Mary's, Isles of Scilly, United Kingdom would travel a Great Circle distance of 4,702 miles (or 7,568 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 King County International Airport and St Mary's 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 King County International Airport and St Mary's 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 King County International Airport (BFI):

• King County International Airport (BFI) has 2 runways.
• Because of King County International Airport's relatively low elevation of 21 feet, planes can take off or land at King County 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.
• At one point Aeroamerica scheduled a Boeing 720 to Spokane.
• The closest airport to King County International Airport (BFI) is Renton Municipal Airport (RNT), which is located only 5 miles (8 kilometers) ESE of BFI.
• In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".
• The August 1946 OAG shows 24 United Airlines weekday departures, 10 Northwest and two or three Pan Am DC-3s to Juneau via Annette Island.
• The furthest airport from King County International Airport (BFI) is Tôlanaro Airport (FTU), which is located 10,775 miles (17,341 kilometers) away in Tôlanaro, Madagascar.
• The initial assembly of the 737 was at Boeing Field in the 1960s because the factory in Renton was at capacity building the 707 and 727.

Facts about St Mary's Airport (ISC):

• The current 600m asphalt runway, 15/33, was built in 1991.
• The closest airport to St Mary's Airport (ISC) is Tresco Heliport (TSO), which is located only 3 miles (5 kilometers) NW of ISC.
• 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".
• Mayflower Air Services started services to the airport in 1961.
• The terminal at the airport is open all year round whilst the airport is in operation.
• St Mary's Airport handled 89,170 passengers last year.
• 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.
• St Mary's Airport (ISC) has 2 runways.
• 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.