Nonstop flight route between Detroit, Michigan, United States and Siena, Italy:

About this route:

A direct, nonstop flight between Willow Run Airport (YIP) (YIP), Detroit, Michigan, United States and Siena-Ampugnano Airport (SAY), Siena, Italy would travel a Great Circle distance of 4,521 miles (or 7,276 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 Willow Run Airport (YIP) and Siena-Ampugnano 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 Willow Run Airport (YIP) and Siena-Ampugnano 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 Willow Run Airport (YIP) (YIP):

• The furthest airport from Willow Run Airport (YIP) (YIP) is Margaret River Airport (MGV), which is located 11,276 miles (18,147 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Willow Run Airport (YIP)'s relatively low elevation of 716 feet, planes can take off or land at Willow Run Airport (YIP) 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 Willow Run plant was gigantic.
• Opened in 1942, "Willow Run" was synonymous with the American industrial effort that contributed so much to Allied victory in World War II.
• The closest airport to Willow Run Airport (YIP) (YIP) is Detroit Metropolitan Wayne County Airport (DTW), which is located only 9 miles (15 kilometers) E of YIP.
• At about the same time it sold the airfield, the RFC leased the bomber plant to the Kaiser-Frazer automobile company.
• The coming of World War II to Europe and the Fall of France in 1940 alarmed many in the United States, and in spite of an official policy of American neutrality, a number of government officials began preparing for the possibility of United States involvement.
• After their manufacture, the next step in the process was the delivery of the aircraft to the squadrons.
• Willow Run Airport (YIP) (YIP) has 4 runways.
• The first Ford-built Liberators rolled off the Willow Run line in September 1942.

Facts about Siena-Ampugnano Airport (SAY):

• Because of Siena-Ampugnano Airport's relatively low elevation of 634 feet, planes can take off or land at Siena-Ampugnano 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.
• During World War II, the facility was known as Malignano Airfield.
• Siena-Ampugnano Airport (SAY) currently has only 1 runway.
• In addition to being known as "Siena-Ampugnano Airport", other names for SAY include "Aeroporto di Siena-Ampugnano" and "Siena-Ampugnano".
• The furthest airport from Siena-Ampugnano Airport (SAY) is Chatham Islands (CHT), which is nearly antipodal to Siena-Ampugnano Airport (meaning Siena-Ampugnano Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,049 miles (19,391 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• The closest airport to Siena-Ampugnano Airport (SAY) is Grosseto Airport (GRS), which is located 36 miles (57 kilometers) SSW of SAY.
• Siena-Ampugnano Airport handled 3,745 passengers last year.