Nonstop flight route between Sion, Switzerland and Marathon, Florida, United States:

About this route:

A direct, nonstop flight between Sion Airport (SIR), Sion, Switzerland and Florida Keys Marathon Airport (MTH), Marathon, Florida, United States would travel a Great Circle distance of 4,930 miles (or 7,934 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 Florida Keys Marathon 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 Florida Keys Marathon 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.
• 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.
• The closest airport to Sion Airport (SIR) is Aosta Valley Airport (AOT), which is located 33 miles (54 kilometers) S of SIR.

Facts about Florida Keys Marathon Airport (MTH):

• The closest airport to Florida Keys Marathon Airport (MTH) is NAS Key West (NQX), which is located 41 miles (67 kilometers) WSW of MTH.
• Marathon Airport was originally constructed by the United States Navy in the early 1940s as Outlying Field Marathon, an auxiliary airfield to Naval Air Station Key West.
• However on December 1, 2006, the TSA bowed to the effective lobbying efforts of local government, congressional and business officials when it announced that screeners would be provided at the airport no later than February 15, 2007, even if it meant using a contractor.
• Florida Keys Marathon Airport (MTH) currently has only 1 runway.
• The furthest airport from Florida Keys Marathon Airport (MTH) is Cocos (Keeling) Island Airport (CCK), which is located 11,560 miles (18,603 kilometers) away in Cocos Islands, Australia.
• Because of Florida Keys Marathon Airport's relatively low elevation of 7 feet, planes can take off or land at Florida Keys Marathon 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.
• The Florida Keys Marathon Airport is a public airport located along the Overseas Highway in Marathon, in Monroe County, Florida, United States.