Nonstop flight route between Imperatriz, Maranhão, Brazil and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Imperatriz-Prefeito Renato Moreira Airport (IMP), Imperatriz, Maranhão, Brazil and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 4,321 miles (or 6,954 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 Imperatriz-Prefeito Renato Moreira 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 Imperatriz-Prefeito Renato Moreira 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 Imperatriz-Prefeito Renato Moreira Airport (IMP):

• The closest airport to Imperatriz-Prefeito Renato Moreira Airport (IMP) is João Correa da Rocha Airport (MAB), which is located 116 miles (187 kilometers) W of IMP.
• The furthest airport from Imperatriz-Prefeito Renato Moreira Airport (IMP) is Roman Tmetuchl International Airport (ROR), which is nearly antipodal to Imperatriz-Prefeito Renato Moreira Airport (meaning Imperatriz-Prefeito Renato Moreira Airport is almost on the exact opposite side of the Earth from Roman Tmetuchl International Airport), and is located 12,250 miles (19,714 kilometers) away in Koror, Palau.
• In addition to being known as "Imperatriz-Prefeito Renato Moreira Airport", another name for IMP is "Aeroporto de Imperatriz-Prefeito Renato Moreira".
• Because of Imperatriz-Prefeito Renato Moreira Airport's relatively low elevation of 431 feet, planes can take off or land at Imperatriz-Prefeito Renato Moreira 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.
• Imperatriz-Prefeito Renato Moreira Airport handled 323,940 passengers last year.
• Imperatriz-Prefeito Renato Moreira Airport (IMP) currently has only 1 runway.
• At the end of World War II, the first airport with a 1,200m x 30m earth runway was operational but it was subject to flooding during the rainy season.

Facts about Henry Post Army Airfield (FSI):

• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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 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.
• Post Field served as a base for flight training for the Air Service.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• 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.
• Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.