Nonstop flight route between Houston, Texas, United States and Siena, Italy:

About this route:

A direct, nonstop flight between George Bush Intercontinental Airport (IAH), Houston, Texas, United States and Siena-Ampugnano Airport (SAY), Siena, Italy would travel a Great Circle distance of 5,573 miles (or 8,969 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 George Bush Intercontinental 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 George Bush Intercontinental 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 George Bush Intercontinental Airport (IAH):

• Terminal D has 12 gates and several international lounges, including two separate British Airways Galleries Lounges, a Lufthansa Senator, a KLM Crown, an Air France, and an Executive Lounge for Singapore, Emirates, Qatar, and Lufthansa.
• The furthest airport from George Bush Intercontinental Airport (IAH) is Cocos (Keeling) Island Airport (CCK), which is located 10,981 miles (17,672 kilometers) away in Cocos Islands, Australia.
• The site for Bush Intercontinental Airport was originally purchased by a group of Houston businessmen in 1957 to preserve the site until the city of Houston could formulate a plan for a second airport, supplanting what was then known as Houston Municipal Airport.
• Because of George Bush Intercontinental Airport's relatively low elevation of 97 feet, planes can take off or land at George Bush Intercontinental 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.
• On January 7, 2009, a Continental Airlines Boeing 737-800 departing Bush Intercontinental was the first U.S.
• The closest airport to George Bush Intercontinental Airport (IAH) is David Wayne Hooks Memorial Airport (DWH), which is located only 14 miles (22 kilometers) WNW of IAH.
• The City of Houston annexed the Bush Airport area in 1965.
• George Bush Intercontinental Airport handled 40,128,953 passengers last year.
• There are three main entrances into IAH's terminal areas.
• Houston became the sixth U.S.
• Houston Intercontinental had been scheduled to open in 1967, but design changes regarding the terminals created cost overruns and construction delays.
• As of 2007, Terminals A and B remain from the original design of the airport.
• George Bush Intercontinental Airport (IAH) has 5 runways.
• In addition to being known as "George Bush Intercontinental Airport", another name for IAH is "Houston-Intercontinental".

Facts about Siena-Ampugnano Airport (SAY):

• Siena-Ampugnano Airport handled 3,745 passengers last year.
• 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.
• During World War II, the facility was known as Malignano Airfield.
• 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 site has recently been proposed for a new international airport capable of handling 4 million passengers a year by 2020.