Nonstop flight route between St. Mary's, Alaska, United States and Porto Alegre, Rio Grande do Sul, Brazil:

About this route:

A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Salgado Filho International Airport (POA), Porto Alegre, Rio Grande do Sul, Brazil would travel a Great Circle distance of 8,739 miles (or 14,064 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 St. Mary's 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 St. Mary's 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 St. Mary's Airport (KSM):

• The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
• The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
• St. Mary's Airport (KSM) has 2 runways.
• Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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 Salgado Filho International Airport (POA):

• Salgado Filho International Airport (POA) currently has only 1 runway.
• 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 addition to being known as "Salgado Filho International Airport", another name for POA is "Aeroporto Internacional Salgado Filho".
• One of the two TAP Maintenance & Engineering centers in Brazil is located at Salgado Filho International Airport.
• 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.
• Salgado Filho was originally called São João Federal Airport, after the neighborhood where it is located.
• The total area of the Salgado Filho Airport is about 3,805,810.04 m² with 142,750 m² of ramp area.
• 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.