Nonstop flight route between Shemya, Alaska, United States and Porto, Portugal:

About this route:

A direct, nonstop flight between Eareckson Air Station (SYA), Shemya, Alaska, United States and Francisco Sá Carneiro Airport (OPO), Porto, Portugal would travel a Great Circle distance of 5,943 miles (or 9,565 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 Eareckson Air Station and Francisco Sá Carneiro 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 Eareckson Air Station and Francisco Sá Carneiro 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 Eareckson Air Station (SYA):

• Eareckson Air Station (SYA) currently has only 1 runway.
• After the disastrous attack, the focus of Eleventh Air Force was shifted to a defensive posture in the event of retaliatory attacks from the Japanese.
• By August, Eleventh Air Force B-24s were carrying out successful and accurate attacks on the Japanese military installations and the B-25s were successful in driving the Japanese fishing and much of the shipping out of the North Pacific.
• In addition to being known as "Eareckson Air Station", other names for SYA include "Shemya Air Force Base", "Shemya Army Airfield" and "  ".
• Because of Eareckson Air Station's relatively low elevation of 97 feet, planes can take off or land at Eareckson Air Station 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 station was also used by SAC Cobra Ball and other related projects which monitored missile-associated signals and tracks missiles during boost and re-entry phases to provide reconnaissance for treaty verification and theater ballistic missile proliferation.
• Shemya also continued to support the Great Circle Route for MATS and later Military Airlift Command transports between Japan and Elmendorf AFB.
• The closest airport to Eareckson Air Station (SYA) is Casco Cove Coast Guard Station (ATU), which is located 40 miles (65 kilometers) WNW of SYA.
• The furthest airport from Eareckson Air Station (SYA) is Cape Town International Airport (CPT), which is located 10,668 miles (17,168 kilometers) away in Cape Town, South Africa.

Facts about Francisco Sá Carneiro Airport (OPO):

• The furthest airport from Francisco Sá Carneiro Airport (OPO) is Westport Airport (WSZ), which is nearly antipodal to Francisco Sá Carneiro Airport (meaning Francisco Sá Carneiro Airport is almost on the exact opposite side of the Earth from Westport Airport), and is located 12,400 miles (19,955 kilometers) away in Westport, New Zealand.
• In 2007, the airport was voted the Best Airport in Europe in the Airport Service Quality Awards by Airports Council International.
• The closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of OPO.
• Because of Francisco Sá Carneiro Airport's relatively low elevation of 226 feet, planes can take off or land at Francisco Sá Carneiro 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 is served by Line E of the Porto Metro.
• Along with the airports in Lisbon, Horta, Faro, Flores, Santa Maria, Ponta Delgada and Beja, the airport's concessions to provide support to civil aviation was conceded to ANA Aeroportos de Portugal on 18 December 1998, under provisions of decree 404/98.
• In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
• Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
• Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.