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

Arrival Airport:

Distance from SYA to OPO:
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- About this route
- SYA Airport Information
- OPO Airport Information
- Facts about SYA
- Facts about OPO
- Map of Nearest Airports to SYA
- List of Nearest Airports to SYA
- Map of Furthest Airports from SYA
- List of Furthest Airports from SYA
- Map of Nearest Airports to OPO
- List of Nearest Airports to OPO
- Map of Furthest Airports from OPO
- List of Furthest Airports from OPO
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:
IATA / ICAO Codes: | SYA / PASY |
Airport Names: |
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Location: | Shemya, Alaska, United States |
GPS Coordinates: | 52°42'43"N by 174°6'48"E |
Operator/Owner: | U.S. Air Force |
Airport Type: | Military |
Elevation: | 97 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from SYA |
More Information: | SYA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | OPO / LPPR |
Airport Names: |
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Location: | Porto, Portugal |
GPS Coordinates: | 41°14'8"N by 8°40'41"W |
Area Served: | Porto, Portugal |
Operator/Owner: | Government of Portugal. |
Airport Type: | Public |
Elevation: | 226 feet (69 meters) |
# of Runways: | 1 |
View all routes: | Routes from OPO |
More Information: | OPO Maps & Info |
Facts about Eareckson Air Station (SYA):
- Eareckson Air Station (SYA) currently has only 1 runway.
- 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.
- In 1958, the Air Force resumed operations on Shemya in support of various Air Force and Army strategic intelligence collection activities.
- It also became a Strategic Air Command refueling site for B-52 Stratofortress bombers and KC-135 tankers as part of Operation Chrome Dome.
- 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.
- By the end of 1944, several hundred American airmen had been interned by the Russians after their crippled aircraft landed on Petropavlovsk on the Kamchatka Peninsula.
- In addition to being known as "Eareckson Air Station", other names for SYA include "Shemya Air Force Base", "Shemya Army Airfield" and " ".
- The mission of Eleventh Air Force was to take advantage of the new airfields on Shemya and Attu, and carry out offensive operations against the enemy forces in the Kuriles.
- 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.
Facts about Francisco Sá Carneiro Airport (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.
- In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
- Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
- Porto Airport reached its six millionth passenger mark on 30 December 2011.
- Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
- The closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of 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.