Nonstop flight route between Rockland, Maine, United States and Porto Alegre, Rio Grande do Sul, Brazil:

About this route:

A direct, nonstop flight between Knox County Regional Airport (RKD), Rockland, Maine, United States and Salgado Filho International Airport (POA), Porto Alegre, Rio Grande do Sul, Brazil would travel a Great Circle distance of 5,241 miles (or 8,434 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 Knox County Regional Airport and Salgado Filho International 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 Knox County Regional Airport and Salgado Filho International 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 Knox County Regional Airport (RKD):

• Knox County Regional Airport (RKD) has 2 runways.
• The airport was built during World War II and became locally known as the "Ash Point Naval Air Station" while officially operating as Rockland Naval Auxiliary Air Facility from April 15, 1943 until February 1, 1946.
• The furthest airport from Knox County Regional Airport (RKD) is Albany Airport (ALH), which is located 11,708 miles (18,842 kilometers) away in Albany, Western Australia, Australia.
• Because of Knox County Regional Airport's relatively low elevation of 56 feet, planes can take off or land at Knox County 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.
• The closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.

Facts about Salgado Filho International Airport (POA):

• In addition to being known as "Salgado Filho International Airport", another name for POA is "Aeroporto Internacional Salgado Filho".
• However, in order to cope with the increasing passenger traffic at the airport, on September 8, 2010 a decision was made to renovate Terminal 2 and bring it back into passenger use.
• In 2012 the airport was ranked 9th in terms of transported passengers in Brazil, placing it amongst the busiest airports in the country.
• The furthest airport from Salgado Filho International Airport (POA) is Yakushima Airport (KUM), which is nearly antipodal to Salgado Filho International Airport (meaning Salgado Filho International Airport is almost on the exact opposite side of the Earth from Yakushima Airport), and is located 12,324 miles (19,834 kilometers) away in Yakushima, Kagoshima Prefecture, Japan.
• In 1953 the old terminal was incorporated into the maintenance facilities of Varig, a new passenger terminal was opened, and runways were paved.
• The closest airport to Salgado Filho International Airport (POA) is Diomício Freitas/Forquilhinha Airport (CCM), which is located 137 miles (221 kilometers) NE of POA.
• Because of Salgado Filho International Airport's relatively low elevation of 11 feet, planes can take off or land at Salgado Filho International 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.
• Salgado Filho International Airport (POA) currently has only 1 runway.
• The bus line T5 link Terminal 1 - International Airport to the city of Porto Alegre.
• Salgado Filho International Airport is the airport serving Porto Alegre, Brazil.