Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Tresco, Isles of Scilly, United Kingdom:

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Tresco Heliport (TSO), Tresco, Isles of Scilly, United Kingdom would travel a Great Circle distance of 4,001 miles (or 6,438 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. Louis Downtown Airport and Tresco Heliport, 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. Louis Downtown Airport and Tresco Heliport. 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. Louis Downtown Airport (CPS):

• Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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.
• St. Louis Downtown Airport (CPS) has 3 runways.
• The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
• Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
• The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
• The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.

Facts about Tresco Heliport (TSO):

• 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.
• 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.
• The heliport was officially closed on 31 October 2012 and all flights ceased operations.
• Tresco Heliport was a heliport located on the island of Tresco, in the Isles of Scilly off the southwest coast of England, UK.
• 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.