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

About this route:

A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Cardiff Airport (CWL), Cardiff, Wales, United Kingdom 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 Sidney-Richland Municipal 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 Sidney-Richland Municipal 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 Sidney-Richland Municipal Airport (SDY):

• 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.
• Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
• 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 covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.

Facts about Cardiff Airport (CWL):

• In December 1995, Heli-air Wales began training Helicopter Pilots from the Airport's southside, and are widely accredited with pioneering Helicopter Training in Wales.
• 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.
• The airport is not only the main maintenance base for British Airways but also home to a variety of aerospace-oriented firms and colleges, and therefore a major contributor to the economic development of the region.
• 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 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.
• In the 1970s, the supersonic airliner Concorde made a few flights into the airport on special occasions.
• 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.
• Cardiff Airport (CWL) currently has only 1 runway.
• 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.
• Cardiff Airport handled 1,072,062 passengers last year.
• The First Minister's criticism was roundly rejected by Alex Cruz, chief executive of Vueling - a Spanish airline which operates regular flights from Cardiff.
• On 2 March 2009 the airport management revealed a name change for the airport along with initial development plans to improve the image of the facility.
• In addition to being known as "Cardiff Airport", another name for CWL is "Maes Awyr Caerdydd".