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):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• 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.
• 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.

Facts about Barreirinhas Airport (BRB):

• 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.
• In addition to being known as "Barreirinhas Airport", another name for BRB is "Aeroporto de Barreirinhas".
• The airport is located 1 km from downtown Barreirinhas.
• 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.
• Barreirinhas Airport (BRB) currently has only 1 runway.
• 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.