Nonstop flight route between Sion, Switzerland and Denver, Colorado, United States:

About this route:

A direct, nonstop flight between Sion Airport (SIR), Sion, Switzerland and Denver International Airport (DEN), Denver, Colorado, United States would travel a Great Circle distance of 5,162 miles (or 8,307 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 Sion Airport and Denver International 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 Sion Airport and Denver International 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 Sion Airport (SIR):

• The closest airport to Sion Airport (SIR) is Aosta Valley Airport (AOT), which is located 33 miles (54 kilometers) S of SIR.
• The furthest airport from Sion Airport (SIR) is Chatham Islands (CHT), which is nearly antipodal to Sion Airport (meaning Sion Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,188 miles (19,615 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In addition to being known as "Sion Airport", other names for SIR include "Aéroport de Sion" and "LSGS /LSMS".
• Sion Airport (SIR) has 2 runways.

Facts about Denver International Airport (DEN):

• Another blizzard on December 20 and 21, 2006 dumped over 20 inches of snow in about 24 hours.
• Denver International Airport (DEN) has 6 runways.
• Denver International Airport handled 52,556,359 passengers last year.
• The system's $186 million original construction costs grew by $1 million per day during months of modifications and repairs.
• As part of the original design of the airport the city specified passenger volume "triggers" that would lead to a redevelopment of the master plan and possible new construction to make sure the airport is able to meet Denver's needs.
• The closest airport to Denver International Airport (DEN) is Centennial Airport (APA), which is located 22 miles (36 kilometers) SSW of DEN.
• Because of Denver International Airport's high elevation of 5,431 feet, planes must typically fly at a faster airspeed in order to takeoff or land at DEN. Combined with a high temperature, this could make DEN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• Denver International Airport, often referred to as DIA, is an airport in Denver, Colorado.
• The furthest airport from Denver International Airport (DEN) is Sir Gaëtan Duval Airport (RRG), which is located 10,877 miles (17,505 kilometers) away in Rodrigues Island, Mauritius.
• From 1980 to 1983, the Denver Regional Council of Governments investigated six areas for a new metro area airport which were north and east of Denver.
• After the airport's runways were completed but before it opened, the airport used the codes.
• The automated baggage system never worked as designed, and in August 2005 it became public knowledge that United would abandon the system, a decision that would save them $1 million per month in maintenance costs.