Nonstop flight route between Sion, Switzerland and Springfield/Chicopee, Massachusetts, United States:

About this route:

A direct, nonstop flight between Sion Airport (SIR), Sion, Switzerland and Westover Air Reserve Base (CEF), Springfield/Chicopee, Massachusetts, United States would travel a Great Circle distance of 3,792 miles (or 6,103 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 Westover Air Reserve Base, 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 Westover Air Reserve Base. 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 Westover Air Reserve Base (CEF):

• The furthest airport from Westover Air Reserve Base (CEF) is Margaret River Airport (MGV), which is located 11,731 miles (18,880 kilometers) away in Margaret River, Western Australia, Australia.
• Four-engine C-54 Skymaster and shorter-range C-47 Skytrain transports took supplies and reinforcements from Westover to the armed forces and returned with the wounded and discharged troops.
• President Roosevelt signed a $750,000 Works Progress Administration project bill for the air base's construction in November 1939.
• The first organization at the base was the 10th Signal Platoon in June 1940.
• The Westover complex serves the "Joint Use" mission of military and civilian cooperation.
• In addition to being known as "Westover Air Reserve Base", another name for CEF is "Westover ARB".
• Current military operations at Westover Air Reserve Base are centered around its exceptionally long runways.
• Physically, Westover is the largest Air Force Reserve base in the United States and will expand significantly over the next decade to further encompass Active and Reserve Component activities of the Navy, Marines, Army, and mainline Air Force functions from installations closed by the Base Realignment and Closure process.
• A second ADC interceptor squadron, the 324th Fighter-Interceptor Squadron was activated at Westover on 18 October 1955.
• The closest airport to Westover Air Reserve Base (CEF) is Westfield-Barnes Regional Airport (BAF), which is located only 10 miles (15 kilometers) WSW of CEF.