Nonstop flight route between Siena, Italy and The Dalles, Oregon, United States:

About this route:

A direct, nonstop flight between Siena-Ampugnano Airport (SAY), Siena, Italy and Columbia Gorge Regional Airport (DLS), The Dalles, Oregon, United States would travel a Great Circle distance of 5,638 miles (or 9,073 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 Columbia Gorge Regional 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 Columbia Gorge Regional 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):

• 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.
• Siena-Ampugnano Airport (SAY) currently has only 1 runway.
• During World War II, the facility was known as Malignano Airfield.
• In addition to being known as "Siena-Ampugnano Airport", other names for SAY include "Aeroporto di Siena-Ampugnano" and "Siena-Ampugnano".
• 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 Columbia Gorge Regional Airport (DLS):

• The furthest airport from Columbia Gorge Regional Airport (DLS) is Tôlanaro Airport (FTU), which is located 10,869 miles (17,492 kilometers) away in Tôlanaro, Madagascar.
• In addition to being known as "Columbia Gorge Regional Airport", another name for DLS is "The Dalles Municipal Airport".
• The closest airport to Columbia Gorge Regional Airport (DLS) is Cascade Locks State Airport (CZK), which is located 35 miles (56 kilometers) W of DLS.
• The airport covers an area of 997 acres at an elevation of 247 feet above mean sea level.
• During the Great Depression, the city was granted $12,000 by the Works Progress Administration, but that was later revoked in 1935 when the WPA learned the city only leased the airport.
• During reconstruction of the original runway 12/30, the runway was renumbered to the current 13/31 designation.
• Columbia Gorge Regional Airport (DLS) has 2 runways.
• Because of Columbia Gorge Regional Airport's relatively low elevation of 247 feet, planes can take off or land at Columbia Gorge 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.