Nonstop flight route between San Luis Obispo, California, United States and Siena, Italy:

About this route:

A direct, nonstop flight between San Luis Obispo County Regional Airport (SBP), San Luis Obispo, California, United States and Siena-Ampugnano Airport (SAY), Siena, Italy would travel a Great Circle distance of 6,226 miles (or 10,019 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 San Luis Obispo County Regional 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 San Luis Obispo County Regional 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 San Luis Obispo County Regional Airport (SBP):

• Because of San Luis Obispo County Regional Airport's relatively low elevation of 212 feet, planes can take off or land at San Luis Obispo County Regional 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.
• After the 1981 demise of Swift Aire following an unsuccessful merger with Golden Gate Airlines, Wings West Airlines established its headquarters in San Luis Obispo and flew several turboprop types operating as American Eagle including the BAe Jetstream 31 and 32, Beechcraft C99, Fairchild Swearingen Metroliner and Saab 340.
• The furthest airport from San Luis Obispo County Regional Airport (SBP) is Pierrefonds Airport (ZSE), which is located 11,446 miles (18,421 kilometers) away in Saint-Pierre, Réunion.
• In addition to being known as "San Luis Obispo County Regional Airport", another name for SBP is "McChesney Field".
• In 1947 county supervisors contracted for another hangar, ramp, and eventually an administration building.
• The closest airport to San Luis Obispo County Regional Airport (SBP) is O'Sullivan Army Heliport (CSL), which is located only 8 miles (14 kilometers) NW of SBP.
• San Luis Obispo County Regional Airport (SBP) has 2 runways.

Facts about Siena-Ampugnano Airport (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.
• 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".
• 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.
• 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.