Nonstop flight route between Swansea, Wales, United Kingdom and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Swansea Airport (SWS), Swansea, Wales, United Kingdom and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 4,026 miles (or 6,479 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 Swansea Airport 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 Swansea Airport 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 Swansea Airport (SWS):

• Swansea Airport was built on what was originally common land during World War II.
• Air Wales used the airport between October 2001 and October 2004, offering flights to Dublin, Cork, Amsterdam, Jersey and London.
• Swansea Airport (SWS) has 2 runways.
• De Havilland Aviation were based at the airport from 1996 to 2002 restoring former de Havilland military and naval aircraft to flying condition, including Vampires, Venom, Sea Devon and Sea Vixen.
• The closest airport to Swansea Airport (SWS) is MoD St Athan (DGX), which is located 31 miles (49 kilometers) ESE of SWS.
• Swansea Airport is an airport located at Fairwood Common on the Gower Peninsula 5 NM west south-west of Swansea, Wales.
• Because of Swansea Airport's relatively low elevation of 299 feet, planes can take off or land at Swansea 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.
• The 1990s saw the arrival of Heli-air Wales to the airport, and so began the era of Helicopter Training in South Wales.
• The furthest airport from Swansea Airport (SWS) is Dunedin International Airport (DUD), which is located 11,966 miles (19,257 kilometers) away in Dunedin, Otago, New Zealand.

Facts about St. Louis Regional Airport (ALN):

• St. Louis Regional Airport (ALN) has 2 runways.
• The 2,250 acres airfield sits at 544 ft MSL.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.
• 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.
• 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.
• West Star Aviation is the largest fixed base operations company at the airport.
• 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.