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

About this route:

A direct, nonstop flight between Siena-Ampugnano Airport (SAY), Siena, Italy and Hayward Executive Airport (HWD), Hayward, California, United States would travel a Great Circle distance of 6,129 miles (or 9,863 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 Hayward Executive 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 Hayward Executive 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):

• The airport resides at an elevation of 634 feet above mean sea level.
• 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.
• The closest airport to Siena-Ampugnano Airport (SAY) is Grosseto Airport (GRS), which is located 36 miles (57 kilometers) SSW of SAY.
• 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".
• 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 Hayward Executive Airport (HWD):

• The airport plans to build a new administration building.
• Because of Hayward Executive Airport's relatively low elevation of 52 feet, planes can take off or land at Hayward Executive 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 Hayward Executive Airport (HWD) is Tôlanaro Airport (FTU), which is located 11,354 miles (18,273 kilometers) away in Tôlanaro, Madagascar.
• The California Air National Guard moved onto land adjoining the airport in 1949.
• In addition to being known as "Hayward Executive Airport", another name for HWD is "(former Hayward Army Airfield)".
• Hayward Executive Airport is a city owned public airport two miles west of downtown Hayward, in Alameda County, California.
• Hayward Executive Airport is home to the Northern California division of Ameriflight as of September 15, 2012.
• The closest airport to Hayward Executive Airport (HWD) is Oakland International Airport (OAK), which is located only 7 miles (11 kilometers) NW of HWD.
• Hayward Executive Airport (HWD) has 2 runways.