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):

• In addition to being known as "Cardiff Airport", another name for CWL is "Maes Awyr Caerdydd".
• The history of the airport extends back to the early 1940s, when the Air Ministry requisitioned land in the rural Vale of Glamorgan to set up a wartime satellite aerodrome and training base, named RAF Rhoose, for Royal Air Force Spitfire pilots.
• 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.
• 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.
• 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 2012, the airport ran into a barrage of sustained criticism from the First Minister of Wales, Carwyn Jones.
• 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.
• The closest airport to Cardiff Airport (CWL) is MoD St Athan (DGX), which is located only 4 miles (6 kilometers) W of CWL.
• 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.

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.
• 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.
• 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 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.