Nonstop flight route between Butte, Montana, United States and Calais / Dunkerque, France:

About this route:

A direct, nonstop flight between Bert Mooney Airport (BTM), Butte, Montana, United States and Calais–Dunkerque Airport (CQF), Calais / Dunkerque, France would travel a Great Circle distance of 4,688 miles (or 7,544 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 Bert Mooney Airport and Calais–Dunkerque 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 Bert Mooney Airport and Calais–Dunkerque 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 Bert Mooney Airport (BTM):

• The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service facility.Federal Aviation Administration records say the airport had 30,431 passenger boardings in calendar year 2008, 25,178 in 2009 and 25,433 in 2010.
• Because of Bert Mooney Airport's high elevation of 5,550 feet, planes must typically fly at a faster airspeed in order to takeoff or land at BTM. Combined with a high temperature, this could make BTM a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Bert Mooney Airport (BTM) is Sir Gaëtan Duval Airport (RRG), which is located 10,611 miles (17,077 kilometers) away in Rodrigues Island, Mauritius.
• Bert Mooney Airport (BTM) has 2 runways.
• The closest airport to Bert Mooney Airport (BTM) is Dillon Airport (DLN), which is located 48 miles (78 kilometers) S of BTM.

Facts about Calais–Dunkerque Airport (CQF):

• In addition to being known as "Calais–Dunkerque Airport", another name for CQF is "Aéroport de Calais - Dunkerque".
• The furthest airport from Calais–Dunkerque Airport (CQF) is Chatham Islands (CHT), which is located 11,937 miles (19,211 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• The closest airport to Calais–Dunkerque Airport (CQF) is Dunkerque – Les Moëres Airfield (XDK), which is located 27 miles (43 kilometers) ENE of CQF.
• Because of Calais–Dunkerque Airport's relatively low elevation of 12 feet, planes can take off or land at Calais–Dunkerque 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.
• Calais–Dunkerque Airport (CQF) currently has only 1 runway.