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

About this route:

A direct, nonstop flight between Cardiff Airport (CWL), Cardiff, Wales, United Kingdom and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 4,060 miles (or 6,534 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 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 Cardiff 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 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.
• It was announced on 13 April 2011 that Bmibaby were to close their base at the airport, along with their base at Manchester Airport in the following October in order to redeploy aircraft at their other bases, including the creation of a new operation at Belfast City Airport.
• Cardiff Airport handled 1,072,062 passengers last year.
• In 2006 the Irish low cost carrier Ryanair withdrew from the airport ending 5 years of service on the Cardiff to Dublin route daily.
• 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.
• 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.
• 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.
• On 27 March 2013, the Welsh Government announced it had purchased the Cardiff International Airport Ltd from TBI Ltd as a going concern for £52,000,000.
• On 15 May 2014 it was announced that Ryanair would return to the airport after an absence of 8 years by operating a service to Tenerife starting on 30 October the same year.
• Cardiff Airport (CWL) currently has only 1 runway.

Facts about St. Louis Regional Airport (ALN):

• Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
• 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.
• The 2,250 acres airfield sits at 544 ft MSL.
• 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.
• 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.