Nonstop flight route between Fort Sill, Oklahoma, United States and Antananarivo, Madagascar:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ivato International Airport (TNR), Antananarivo, Madagascar would travel a Great Circle distance of 10,080 miles (or 16,222 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 Ivato International 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 Ivato International 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 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.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• 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.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.

Facts about Ivato International Airport (TNR):

• The closest airport to Ivato International Airport (TNR) is Tsiroanomandidy Airport (WTS), which is located 93 miles (150 kilometers) W of TNR.
• Ivato International Airport handled 611,175 passengers last year.
• The furthest airport from Ivato International Airport (TNR) is Santa Cruz Island Airport (SZN), which is located 11,128 miles (17,908 kilometers) away in Santa Barbara, California, United States.
• Ivato International Airport (TNR) currently has only 1 runway.
• Because of Ivato International Airport's high elevation of 4,198 feet, planes must typically fly at a faster airspeed in order to takeoff or land at TNR. Combined with a high temperature, this could make TNR a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• In addition to being known as "Ivato International Airport", another name for TNR is "Antananarivo-Ivato Airport".