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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Barreirinhas Airport (BRB), Barreirinhas, Maranhão, Brazil would travel a Great Circle distance of 4,428 miles (or 7,127 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 Barreirinhas 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 Henry Post Army Airfield and Barreirinhas 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 Henry Post Army Airfield (FSI):

• 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.
• Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
• 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.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.

Facts about Barreirinhas Airport (BRB):

• In addition to being known as "Barreirinhas Airport", another name for BRB is "Aeroporto de Barreirinhas".
• Because of technical and legal problems related to the construction of a second runway, the National Civil Aviation Agency of Brazil does not authorize official operations at this facility.
• Because of Barreirinhas Airport's relatively low elevation of 66 feet, planes can take off or land at Barreirinhas 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 Barreirinhas Airport (BRB) is Parnaíba–Prefeito Dr. João Silva Filho International Airport (PHB), which is located 75 miles (120 kilometers) E of BRB.
• Currently no scheduled flights operate at this airport.
• The furthest airport from Barreirinhas Airport (BRB) is Frans Kaisiepo Airport (BIK), which is nearly antipodal to Barreirinhas Airport (meaning Barreirinhas Airport is almost on the exact opposite side of the Earth from Frans Kaisiepo Airport), and is located 12,154 miles (19,560 kilometers) away in Biak, Indonesia.
• Barreirinhas Airport (BRB) currently has only 1 runway.