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

About this route:

A direct, nonstop flight between Denver International Airport (DEN), Denver, Colorado, United States and Sion Airport (SIR), Sion, Switzerland 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 Denver International Airport and Sion 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 Denver International Airport and Sion 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 Denver International Airport (DEN):

• The closest airport to Denver International Airport (DEN) is Centennial Airport (APA), which is located 22 miles (36 kilometers) SSW of DEN.
• After the airport's runways were completed but before it opened, the airport used the codes.
• DIA finally replaced Stapleton on February 28, 1995, 16 months behind schedule and at a cost of $4.8 billion, nearly $2 billion over budget.
• DIA's Art Collection was recently honored by the publishers of USA TODAY, for being of the ten best airports for public art in the United States.
• Delays caused by poor planning and repeated design changes due to changing requirements from United Airlines caused Mayor Webb to push opening day back, first to December 1993, then to March 1994.
• 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.
• Denver International Airport (DEN) has 6 runways.
• With the construction of DIA, Denver was determined to build an airport that could be easily expanded over the next 50 years to eliminate many of the problems that had plagued Stapleton International Airport.
• 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 handled 52,556,359 passengers last year.

Facts about Sion Airport (SIR):

• 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.
• 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.
• The closest airport to Sion Airport (SIR) is Aosta Valley Airport (AOT), which is located 33 miles (54 kilometers) S of SIR.