Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Cardiff, Wales, United Kingdom:

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Cardiff Airport (CWL), Cardiff, Wales, United Kingdom would travel a Great Circle distance of 4,080 miles (or 6,566 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 Cardiff 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. Louis Downtown Airport and Cardiff 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. Louis Downtown Airport (CPS):

• St. Louis Downtown Airport (CPS) has 3 runways.
• 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.
• 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.

Facts about Cardiff Airport (CWL):

• In addition to being known as "Cardiff Airport", another name for CWL is "Maes Awyr Caerdydd".
• On 1 April 1965 the Ministry of Aviation handed over the airport to Glamorgan County Council and it was renamed Glamorgan Airport.
• Cardiff Airport (CWL) currently has only 1 runway.
• The closest airport to Cardiff Airport (CWL) is MoD St Athan (DGX), which is located only 4 miles (6 kilometers) W of CWL.
• The airport was used by 2.1 million passengers in 2008, falling to around 1.1 million passengers in 2013, according to the United Kingdom Civil Aviation Authority, a reduction of nearly 50% since 2008, making it the 21st busiest airport in the UK in terms of passenger numbers.
• The man who decided Rhoose could be the site of a new Airport was David Rees-Williams a Bridgend-born solicitor who had served as a Lieutenant-Colonel in the Royal Artillery during the WW2 and who.
• The airport was the main base for three local airlines.
• Cardiff Airport handled 1,072,062 passengers last year.
• In 2007 a new airline was mooted as a new home carrier at the airport.
• Because of Cardiff Airport's relatively low elevation of 220 feet, planes can take off or land at Cardiff 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 Cardiff Airport (CWL) is Dunedin International Airport (DUD), which is located 11,958 miles (19,244 kilometers) away in Dunedin, Otago, New Zealand.
• Cardiff Airport has also had several problems with wild fly-grazing horses around the airfield and the Redwings Sanctuary in Norfolk were needed to assist in the rescue of 23 unclaimed horses that had been left on the site.