Nonstop flight route between Philadelphia, Pennsylvania, United States and Siena, Italy:

About this route:

A direct, nonstop flight between Philadelphia International Airport (PHL), Philadelphia, Pennsylvania, United States and Siena-Ampugnano Airport (SAY), Siena, Italy would travel a Great Circle distance of 4,266 miles (or 6,865 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 Philadelphia 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 Philadelphia 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 Philadelphia International Airport (PHL):

• US Airways became the dominant carrier at PHL during the 1980s and 1990s and shifted most of its hub operations from Pittsburgh to Philadelphia in 2003.
• In June 1943 I Fighter Command transferred jurisdiction of the airport to the Air Technical Service Command.
• In July 1999 the Pennsylvania Department of Transportation and several U.S.
• The closest airport to Philadelphia International Airport (PHL) is Philadelphia Seaplane BaseChandler Field (PSQ), which is located only 3 miles (5 kilometers) WSW of PHL.
• One of the two newest terminal buildings at the airport, Concourse A West has a very modern and innovative design, made by Kohn Pedersen Fox, Pierce Goodwin Alexander & Linville, and Kelly/Maiello.
• During World War II the United States Army Air Forces used the airport as a First Air Force training airfield.
• Because of Philadelphia International Airport's relatively low elevation of 36 feet, planes can take off or land at Philadelphia 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.
• Philadelphia International Airport (PHL) has 4 runways.
• The furthest airport from Philadelphia International Airport (PHL) is Margaret River Airport (MGV), which is located 11,734 miles (18,884 kilometers) away in Margaret River, Western Australia, Australia.
• Southwest Airlines, the fastest growing airline for several years after beginning service to PHL in 2004, worked with the city and the airport to expand and improve its facilities.

Facts about Siena-Ampugnano Airport (SAY):

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