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

About this route:

A direct, nonstop flight between Siena-Ampugnano Airport (SAY), Siena, Italy and Philadelphia International Airport (PHL), Philadelphia, Pennsylvania, United States 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 Siena-Ampugnano Airport and Philadelphia International 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 Siena-Ampugnano Airport and Philadelphia International 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 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.
• Siena-Ampugnano Airport handled 3,745 passengers last year.
• 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.
• 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".
• The airport resides at an elevation of 634 feet above mean sea level.

Facts about Philadelphia International Airport (PHL):

• In June 1943 I Fighter Command transferred jurisdiction of the airport to the Air Technical Service Command.
• 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.
• 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.
• 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.
• In the 1980s PHL hosted several hubs.
• Philadelphia International Airport is important to Philadelphia, its metropolitan region and the Commonwealth of Pennsylvania.
• This terminal, originally the airport's international terminal, is now used by American Airlines, Frontier, and Spirit, and also by US Airways for domestic and international flights.
• Philadelphia International Airport (PHL) has 4 runways.
• In 2004 Southwest Airlines announced it would begin flights from PHL, challenging US Airways in some of its important East Coast and Midwest markets.
• Starting in 1925 the Pennsylvania National Guard used the PHL site as a training airfield.