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

About this route:

A direct, nonstop flight between Siena-Ampugnano Airport (SAY), Siena, Italy and Willow Run Airport (YIP) (YIP), Detroit, Michigan, United States 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 Siena-Ampugnano Airport and Willow Run Airport (YIP), 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 Siena-Ampugnano Airport and Willow Run Airport (YIP). 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 Siena-Ampugnano Airport (SAY):

• 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.
• In addition to being known as "Siena-Ampugnano Airport", other names for SAY include "Aeroporto di Siena-Ampugnano" and "Siena-Ampugnano".
• Siena-Ampugnano Airport (SAY) currently has only 1 runway.
• Siena-Ampugnano Airport handled 3,745 passengers last year.
• 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.
• The airport resides at an elevation of 634 feet above mean sea level.
• The closest airport to Siena-Ampugnano Airport (SAY) is Grosseto Airport (GRS), which is located 36 miles (57 kilometers) SSW of SAY.

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.
• Between 1946 and 1947, passenger airlines serving Detroit moved from Detroit City Airport on the city's crowded east side, to Willow Run.
• The Willow Run plant was gigantic.
• 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.
• Although the airfield itself and the buildings to the east of the runways had been built on Henry Ford's personal property, it is unclear how the parcels across the county line that became the site of the bomber plant were assembled.
• Willow Run's relative isolation encouraged new approaches to passenger transportation to and from airports.
• 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.
• To meet projected demand for the B-24, in early 1941 the Federal government established the Liberator Production Pool Program.
• Once production began, it became difficult to introduce changes dictated by field experience in the various overseas theaters onto the production line in a timely fashion.
• 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.
• Willow Run Airport (YIP) (YIP) has 4 runways.