Nonstop flight route between Fort Sill, Oklahoma, United States and São Luís, Brazil:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Marechal Cunha Machado International Airport (Tirirical) (SLZ), São Luís, Brazil would travel a Great Circle distance of 4,346 miles (or 6,995 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 Henry Post Army Airfield and Marechal Cunha Machado International Airport (Tirirical), 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 Henry Post Army Airfield and Marechal Cunha Machado International Airport (Tirirical). 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 Henry Post Army Airfield (FSI):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
• 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.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• 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.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• 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.

Facts about Marechal Cunha Machado International Airport (Tirirical) (SLZ):

• Marechal Cunha Machado International Airport, formerly called Tirirical Airport, is the airport serving São Luís, Brazil.
• Marechal Cunha Machado International Airport (Tirirical) handled 1,991,094 passengers last year.
• The furthest airport from Marechal Cunha Machado International Airport (Tirirical) (SLZ) is Kornasoren Airport (FOO), which is nearly antipodal to Marechal Cunha Machado International Airport (Tirirical) (meaning Marechal Cunha Machado International Airport (Tirirical) is almost on the exact opposite side of the Earth from Kornasoren Airport), and is located 12,186 miles (19,611 kilometers) away in Noemfoor, Schouten Islands, Indonesia.
• The airport is located 15 km from downtown São Luís.
• In addition to being known as "Marechal Cunha Machado International Airport (Tirirical)", another name for SLZ is "Aeroporto Internacional Marechal Cunha Machado (Tirirical)".
• Marechal Cunha Machado International Airport (Tirirical) (SLZ) has 2 runways.
• The closest airport to Marechal Cunha Machado International Airport (Tirirical) (SLZ) is Barreirinhas Airport (BRB), which is located 99 miles (160 kilometers) E of SLZ.
• Because of Marechal Cunha Machado International Airport (Tirirical)'s relatively low elevation of 178 feet, planes can take off or land at Marechal Cunha Machado International Airport (Tirirical) 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.