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

About this route:

A direct, nonstop flight between Cardiff Airport (CWL), Cardiff, Wales, United Kingdom and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States 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 Cardiff Airport and St. Louis Downtown 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 Cardiff Airport and St. Louis Downtown 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 Cardiff Airport (CWL):

• 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 the main base for three local airlines.
• Also in 1952 Aer Lingus started a service to Dublin.
• In addition to being known as "Cardiff Airport", another name for CWL is "Maes Awyr Caerdydd".
• Rees-Williams thought diverting the river at Pengam would be a problem, and feared that the tall chimney stacks of the nearby East Moors Steelworks could pose a safety hazard to aircraft.
• In early December 2013 Flybe announced it would drop its Paris and Glasgow services with effect from January 2014.
• 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.
• Cardiff Airport (CWL) currently has only 1 runway.
• 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.
• 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.
• As of March 2013, the Welsh Government is in the process of acquiring Cardiff Airport from TBI/Abertis, who may also divest themselves of all their airport assets following international criticism of their management of these resources.
• Cardiff Airport handled 1,072,062 passengers last year.

Facts about St. Louis Downtown Airport (CPS):

• St. Louis Downtown Airport (CPS) has 3 runways.
• The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
• 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.
• 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 airport opened in 1929 as Curtiss-Steinberg Airport.
• 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.