Nonstop flight route between Sion, Switzerland and Cold Bay, Alaska, United States:

About this route:

A direct, nonstop flight between Sion Airport (SIR), Sion, Switzerland and Cold Bay Airport (CDB), Cold Bay, Alaska, United States would travel a Great Circle distance of 5,405 miles (or 8,699 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 Cold Bay 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 Cold Bay 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):

• Sion Airport (SIR) has 2 runways.
• The closest airport to Sion Airport (SIR) is Aosta Valley Airport (AOT), which is located 33 miles (54 kilometers) S of SIR.
• In addition to being known as "Sion Airport", other names for SIR include "Aéroport de Sion" and "LSGS /LSMS".
• 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.

Facts about Cold Bay Airport (CDB):

• Because of Cold Bay Airport's relatively low elevation of 102 feet, planes can take off or land at Cold Bay 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.
• On October 30, 2013 a Delta Airlines Boeing 767-300 on the flight from Tokyo to San Francisco landed on the airport due to an engine shut-down.
• On September 8, 1973 World Airways Flight 802 a Military Airlift Command cargo flight crashed into Mount Dutton when on approach to Cold Bay.
• In addition to being known as "Cold Bay Airport", other names for CDB include "Cold Bay Air Force Station" and "Fort Randall Army Airfield".
• The closest airport to Cold Bay Airport (CDB) is King Cove Airport (KVC), which is located only 19 miles (31 kilometers) ESE of CDB.
• Cold Bay Airport (CDB) has 2 runways.
• Fort Randall AAF was also used by the United States Navy during the Aleutian campaign.
• The airport was constructed during World War II as Fort Randall Army Airfield during the secret military buildup of the Territory of Alaska that began in 1941.
• The furthest airport from Cold Bay Airport (CDB) is Cape Town International Airport (CPT), which is located 10,968 miles (17,652 kilometers) away in Cape Town, South Africa.