Nonstop flight route between Fort Sill, Oklahoma, United States and Alerta, Peru:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Alerta Airport (ALD), Alerta, Peru would travel a Great Circle distance of 3,725 miles (or 5,995 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 Alerta 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 Alerta 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):

• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• 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.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• 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 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.

Facts about Alerta Airport (ALD):

• Because of Alerta Airport's relatively low elevation of 800 feet, planes can take off or land at Alerta 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 furthest airport from Alerta Airport (ALD) is Cam Ranh International Airport (CXR), which is nearly antipodal to Alerta Airport (meaning Alerta Airport is almost on the exact opposite side of the Earth from Cam Ranh International Airport), and is located 12,337 miles (19,854 kilometers) away in Cam Ranh, Khánh Hòa, Vietnam.
• In addition to being known as "Alerta Airport", another name for ALD is "Aeropuerto de Alerta".
• The closest airport to Alerta Airport (ALD) is Iberia Airport (IBP), which is located 22 miles (35 kilometers) NNW of ALD.