Nonstop flight route between St. Mary's, Alaska, United States and Rio Branco, Acre, Brazil:

About this route:

A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Rio Branco-Plácido de Castro International Airport (RBR), Rio Branco, Acre, Brazil would travel a Great Circle distance of 6,995 miles (or 11,257 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 Rio Branco-Plácido de Castro 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 Rio Branco-Plácido de Castro 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):

• 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.
• 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.
• 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.
• St. Mary's Airport (KSM) has 2 runways.

Facts about Rio Branco-Plácido de Castro International Airport (RBR):

• Rio Branco-Plácido de Castro International Airport handled 382,469 passengers last year.
• The closest airport to Rio Branco-Plácido de Castro International Airport (RBR) is Captain Aníbal Arab Airport (CIJ), which is located 101 miles (162 kilometers) SW of RBR.
• The airport was opened on November 22, 1999 as a replacement to Presidente Médici International Airport, which was then closed.
• In addition to being known as "Rio Branco-Plácido de Castro International Airport", another name for RBR is "Aeroporto Internacional de Rio Branco-Plácido de Castro".
• The furthest airport from Rio Branco-Plácido de Castro International Airport (RBR) is Cam Ranh International Airport (CXR), which is nearly antipodal to Rio Branco-Plácido de Castro International Airport (meaning Rio Branco-Plácido de Castro International Airport is almost on the exact opposite side of the Earth from Cam Ranh International Airport), and is located 12,192 miles (19,621 kilometers) away in Cam Ranh, Khánh Hòa, Vietnam.
• The airport is located 25 km from downtown Rio Branco.
• Rio Branco-Plácido de Castro International Airport (RBR) currently has only 1 runway.
• It is operated by Infraero.
• Because of Rio Branco-Plácido de Castro International Airport's relatively low elevation of 633 feet, planes can take off or land at Rio Branco-Plácido de Castro 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.