Nonstop flight route between Greensboro, North Carolina, United States and Siena, Italy:

About this route:

A direct, nonstop flight between Piedmont Triad International Airport (GSO), Greensboro, North Carolina, United States and Siena-Ampugnano Airport (SAY), Siena, Italy would travel a Great Circle distance of 4,626 miles (or 7,445 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 Piedmont Triad 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 Piedmont Triad 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 Piedmont Triad International Airport (GSO):

• By 1975 airport officials began to plan for a new terminal.
• In December 2008, FedEx Express said that it would open the hub on time in June 2009, but it will operate at nowhere near capacity.
• Work on the new facility began in 1978.
• Pitcairn Aviation, Incorporated was given the contract to fly the airmail route, the second official airmail route in the United States, and Pitcairn Aviation made the first delivery of airmail in North Carolina on May 1, 1928.
• Because of Piedmont Triad International Airport's relatively low elevation of 926 feet, planes can take off or land at Piedmont Triad 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 Piedmont Triad International Airport (GSO) is Margaret River Airport (MGV), which is located 11,574 miles (18,626 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to Piedmont Triad International Airport (GSO) is Smith Reynolds Airport (INT), which is located only 16 miles (26 kilometers) W of GSO.
• Delta Connection carrier Comair built a maintenance hangar at PTI to perform work on their CRJ's in 2005, bringing nearly 60 mechanics to Greensboro.
• Piedmont Triad International Airport (GSO) has 3 runways.

Facts about Siena-Ampugnano Airport (SAY):

• The airport resides at an elevation of 634 feet above mean sea level.
• 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 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".
• 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.
• The site has recently been proposed for a new international airport capable of handling 4 million passengers a year by 2020.
• Siena-Ampugnano Airport (SAY) currently has only 1 runway.