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

About this route:

A direct, nonstop flight between St Mary's Airport (ISC), St Mary's, Isles of Scilly, United Kingdom and Chefornak Airport (CYF), Chefornak, Alaska, United States would travel a Great Circle distance of 4,733 miles (or 7,618 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 Chefornak 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 St Mary's Airport and Chefornak 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 St Mary's Airport (ISC):

• On 2 May 1964, BEA replaced its Dragon Rapides on the Land's End route with a single Sikorsky S-61 helicopter, operated by BEA Helicopters.
• The closest airport to St Mary's Airport (ISC) is Tresco Heliport (TSO), which is located only 3 miles (5 kilometers) NW of ISC.
• 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 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".
• St Mary's Airport handled 89,170 passengers last year.
• After being in operation for 48 years, the helicopter service between St Mary's and the mainland UK ceased operations in October 2012, leaving Skybus as the sole remaining air link for the Isles of Scilly.
• 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.

Facts about Chefornak Airport (CYF):

• Chefornak Airport (CYF) currently has only 1 runway.
• Chefornak Airport is a state-owned public-use airport in Chefornak, a city in the Bethel Census Area of the U.S.
• In addition to being known as "Chefornak Airport", another name for CYF is "CFK".
• The furthest airport from Chefornak Airport (CYF) is Cape Town International Airport (CPT), which is located 10,623 miles (17,096 kilometers) away in Cape Town, South Africa.
• A new airstrip has been built further out from the village due to concerns with the current airstrip being near the school and pedestrian traffic, however, the runway must settle for several years before it is ready to be used.
• The closest airport to Chefornak Airport (CYF) is Kipnuk Airport (KPN), which is located only 17 miles (28 kilometers) SSE of CYF.
• Because of Chefornak Airport's relatively low elevation of 40 feet, planes can take off or land at Chefornak 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.