Nonstop flight route between Fort Sill, Oklahoma, United States and Santo Antônio do Içá, Amazonas, Brazil:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ipiranga Airport (IPG), Santo Antônio do Içá, Amazonas, Brazil would travel a Great Circle distance of 3,196 miles (or 5,143 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 Ipiranga 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 Ipiranga 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.
• Post Field served as a base for flight training for the Air Service.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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 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.
• 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 end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.

Facts about Ipiranga Airport (IPG):

• The furthest airport from Ipiranga Airport (IPG) is Kuching International Airport (KCH), which is nearly antipodal to Ipiranga Airport (meaning Ipiranga Airport is almost on the exact opposite side of the Earth from Kuching International Airport), and is located 12,406 miles (19,965 kilometers) away in Kuching, Sarawak, Malaysia.
• Ipiranga Airport (IPG) currently has only 1 runway.
• Because of Ipiranga Airport's relatively low elevation of 131 feet, planes can take off or land at Ipiranga 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.
• Ipiranga Airport is the airport serving Santo Antônio do Içá, Brazil.
• The closest airport to Ipiranga Airport (IPG) is Alfredo Vásquez Cobo International Airport (LET), which is located 89 miles (143 kilometers) S of IPG.
• In addition to being known as "Ipiranga Airport", another name for IPG is "Aeroporto do Ipiranga".