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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Santa Maria Airport (RIA), Santa Maria, Rio Grande do Sul, Brazil would travel a Great Circle distance of 5,316 miles (or 8,555 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 Santa Maria 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 Santa Maria 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):

• In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
• 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 AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• 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.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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.
• 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.

Facts about Santa Maria Airport (RIA):

• The airport is located 11 km east of downtown Santa Maria.
• Because of Santa Maria Airport's relatively low elevation of 289 feet, planes can take off or land at Santa Maria 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.
• Santa Maria Airport (RIA) has 2 runways.
• In addition to being known as "Santa Maria Airport", another name for RIA is "Aeroporto de Santa Maria".
• The closest airport to Santa Maria Airport (RIA) is João Batista Bos Filho Airport (IJU), which is located 93 miles (150 kilometers) N of RIA.
• Some of its facilities are shared with the Santa Maria Air Force Base of the Brazilian Air Force.
• The furthest airport from Santa Maria Airport (RIA) is Aguni Airport (AGJ), which is nearly antipodal to Santa Maria Airport (meaning Santa Maria Airport is almost on the exact opposite side of the Earth from Aguni Airport), and is located 12,214 miles (19,656 kilometers) away in Aguni, Japan.