Nonstop flight route between Boston, Massachusetts, United States and Siena, Italy:

About this route:

A direct, nonstop flight between Boston Logan International Airport (BOS), Boston, Massachusetts, United States and Siena-Ampugnano Airport (SAY), Siena, Italy would travel a Great Circle distance of 3,987 miles (or 6,417 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 Boston Logan International Airport 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 Boston Logan International Airport 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 Boston Logan International Airport (BOS):

• In 2011, Logan Airport served an all-time high of 28,800,000 passengers, a 5% increase from 2010.
• Boston Logan International Airport (BOS) has 6 runways.
• The closest airport to Boston Logan International Airport (BOS) is Norwood Memorial Airport (OWD), which is located only 15 miles (24 kilometers) SW of BOS.
• In October 2009 US Airways announced it would close its Boston crew base in May 2010.
• The distinctive central control tower, nearly a dozen stories high, is a local landmark with its pair of segmented elliptical pylons and a six-story platform trussed between them.
• The era of the jumbo jet began at Logan in summer 1970 when Pan Am started daily Boeing 747s to London Heathrow Airport.
• Boston Logan International Airport handled 3,021,863 passengers last year.
• Because of Boston Logan International Airport's relatively low elevation of 20 feet, planes can take off or land at Boston Logan International 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 furthest airport from Boston Logan International Airport (BOS) is Margaret River Airport (MGV), which is located 11,767 miles (18,937 kilometers) away in Margaret River, Western Australia, Australia.

Facts about Siena-Ampugnano Airport (SAY):

• The closest airport to Siena-Ampugnano Airport (SAY) is Grosseto Airport (GRS), which is located 36 miles (57 kilometers) SSW of SAY.
• During World War II, the facility was known as Malignano Airfield.
• Siena-Ampugnano Airport (SAY) currently has only 1 runway.
• 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.
• 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.
• In addition to being known as "Siena-Ampugnano Airport", other names for SAY include "Aeroporto di Siena-Ampugnano" and "Siena-Ampugnano".