Nonstop flight route between Cardiff, Wales, United Kingdom and Sidney, Montana, United States:

About this route:

A direct, nonstop flight between Cardiff Airport (CWL), Cardiff, Wales, United Kingdom and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 4,150 miles (or 6,679 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 Sidney-Richland Municipal 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 Sidney-Richland Municipal 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):

• 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 handled 1,072,062 passengers last year.
• 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.
• In the 1970s, the supersonic airliner Concorde made a few flights into the airport on special occasions.
• The closest airport to Cardiff Airport (CWL) is MoD St Athan (DGX), which is located only 4 miles (6 kilometers) W of CWL.
• Cardiff Airport (CWL) currently has only 1 runway.
• 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.
• However, it emerged that the Airport had applied for £5 million of payments from the Welsh Assembly Government to deal with unspecified development at the terminal.
• In 2006 the Irish low cost carrier Ryanair withdrew from the airport ending 5 years of service on the Cardiff to Dublin route daily.
• On 16 May 2012, it was announced that airport Managing Director, Patrick Duffy, had left his position amid mounting pressure from the Welsh Government on the airport owners Abertis to improve the state of the airport and improve the services it offers, or sell the facility to an investor in a proposed public-private partnership.
• In 2012, the airport ran into a barrage of sustained criticism from the First Minister of Wales, Carwyn Jones.
• In addition to being known as "Cardiff Airport", another name for CWL is "Maes Awyr Caerdydd".

Facts about Sidney-Richland Municipal Airport (SDY):

• Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
• As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
• The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
• Sidney-Richland Municipal Airport (SDY) has 2 runways.
• The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
• Sidney-Richland Municipal Airport is a public use airport located one nautical mile west of the central business district of Sidney, a city in Richland County, Montana, United States.