Nonstop flight route between Siena, Italy and Palo Alto, California, United States:

About this route:

A direct, nonstop flight between Siena-Ampugnano Airport (SAY), Siena, Italy and Palo Alto Airport of Santa Clara County (PAO), Palo Alto, California, United States would travel a Great Circle distance of 6,140 miles (or 9,881 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 Palo Alto Airport of Santa Clara County, 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 Palo Alto Airport of Santa Clara County. 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):

• Siena-Ampugnano Airport is a small military airfield near Siena, in Tuscany, Italy.
• Siena-Ampugnano Airport handled 3,745 passengers last year.
• 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.
• 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.
• 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.

Facts about Palo Alto Airport of Santa Clara County (PAO):

• Because of Palo Alto Airport of Santa Clara County's relatively low elevation of 4 feet, planes can take off or land at Palo Alto Airport of Santa Clara County 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.
• Palo Alto Airport of Santa Clara County (PAO) currently has only 1 runway.
• The closest airport to Palo Alto Airport of Santa Clara County (PAO) is Moffett Federal Airfield (NUQ), which is located only 5 miles (8 kilometers) SE of PAO.
• The furthest airport from Palo Alto Airport of Santa Clara County (PAO) is Tôlanaro Airport (FTU), which is located 11,365 miles (18,289 kilometers) away in Tôlanaro, Madagascar.
• The airport was opened to the public in April 1940.
• First time pilots should familiarize themselves with the complex SF Bay Area airspace, especially the overlying SFO Class B and the abutting SJC Class C airspace.
• Facilities at this busy towered airport include multiple aircraft repair shops and a staffed terminal including West Valley Flight Club, Advanced Flyers, Peninsula Avionics, Sundance Flying Club, Stanford Flying Club, Rossi Aircraft, and Palo Alto Fuel Service.
• Fifteen miles of hiking and biking trails, affording multiple opportunities for birdwatching, form part of the adjacent 1,940-acre Palo Alto Baylands Nature Preserve.