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

About this route:

A direct, nonstop flight between Francisco Sá Carneiro Airport (OPO), Porto, Portugal and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 4,969 miles (or 7,997 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 Francisco Sá Carneiro Airport and Diomede Heliport (FAA: DM2), 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 Francisco Sá Carneiro Airport and Diomede Heliport (FAA: DM2). 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 Francisco Sá Carneiro Airport (OPO):

• Francisco Sá Carneiro Airport (OPO) currently has only 1 runway.
• Taxis service the city centre and there is a road link.
• The closest airport to Francisco Sá Carneiro Airport (OPO) is Braga Airport (BGZ), which is located 27 miles (44 kilometers) NNE of OPO.
• In addition to being known as "Francisco Sá Carneiro Airport", another name for OPO is "Aeroporto Francisco Sá Carneiro".
• Porto Airport reached its six millionth passenger mark on 30 December 2011.
• Francisco Sá Carneiro Airport handled 6,050,094 passengers last year.
• 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.
• 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.

Facts about Diomede Heliport (FAA: DM2) (DIO):

• Today there are about 30 buildings on the island, including the residential housing that was mainly built in the 1970s and 1980s.
• At the beginning of the Cold War in the late 1940s Big Diomede became a Russian military base and all its native residents were removed to mainland Russia.
• The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
• The furthest airport from Diomede Heliport (FAA: DM2) (DIO) is Teniente Rodolfo Marsh Airport (TNM), which is located 10,411 miles (16,755 kilometers) away in Villa Las Estrellas, Antarctica.
• While other emergency services are provided by volunteers and a health aide, the fire and rescue service is provided by Diomede Volunteer Fire Department and First Responders.
• The current location of the city, which is believed to be at least 3,000 years old by some archaeologists, was originally a spring hunting campsite and the early explorers from the west found the Iñupiat at Diomede had an advanced culture including their elaborate whale hunting ceremonies.
• Because of Diomede Heliport (FAA: DM2)'s relatively low elevation of 0 feet, planes can take off or land at Diomede Heliport (FAA: DM2) 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 first non-native to reach the Diomede Islands was a Russian explorer Semyon Dezhnev in 1648.
• According to the United States Census Bureau, the village has a total area of 2.84 square miles, all of it land.