Nonstop flight route between Porto Alegre, Rio Grande do Sul, Brazil and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Salgado Filho International Airport (POA), Porto Alegre, Rio Grande do Sul, Brazil and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 5,423 miles (or 8,727 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 Salgado Filho International Airport and Henry Post Army Airfield, 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 Salgado Filho International Airport and Henry Post Army Airfield. 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 Salgado Filho International Airport (POA):

• Salgado Filho International Airport is the airport serving Porto Alegre, Brazil.
• In addition to being known as "Salgado Filho International Airport", another name for POA is "Aeroporto Internacional Salgado Filho".
• 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.
• 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.
• 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.
• 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 International Airport (POA) currently has only 1 runway.
• The bus line T5 link Terminal 1 - International Airport to the city of Porto Alegre.

Facts about Henry Post Army Airfield (FSI):

• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
• The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.