Nonstop flight route between Sheffield, England, United Kingdom and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Sheffield City Heliport (SZD), Sheffield, England, United Kingdom and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 4,077 miles (or 6,562 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 Sheffield City Heliport and St. Louis Regional 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 Sheffield City Heliport and St. Louis Regional 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 Sheffield City Heliport (SZD):

• In the end the last scheduled airline pulled out in 2002, after the airport had passed into the hands of Peel Airports, who were shortly to be opening Robin Hood Airport Doncaster Sheffield airport, approximately 25 miles away.
• Because of Sheffield City Heliport's relatively low elevation of 231 feet, planes can take off or land at Sheffield City 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 closest airport to Sheffield City Heliport (SZD) is Robin Hood Airport Doncaster Sheffield (DSA), which is located only 17 miles (27 kilometers) ENE of SZD.
• Sheffield City Heliport (SZD) currently has only 1 runway.
• Planning permission has been granted to turn the entire site into a business park, however in December 2012, Sheffield City Council received details of a bid to reopen the airport.
• The furthest airport from Sheffield City Heliport (SZD) is Dunedin International Airport (DUD), which is located 11,799 miles (18,989 kilometers) away in Dunedin, Otago, New Zealand.

Facts about St. Louis Regional Airport (ALN):

• In the spring of 2004 the airport was at the center of a scandal.
• Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
• The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
• The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
• Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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 Regional Airport (ALN) has 2 runways.