Nonstop flight route between Fort Sill, Oklahoma, United States and Castres, Languedoc, France:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Castres - Mazamet Airport (DCM), Castres, Languedoc, France would travel a Great Circle distance of 5,090 miles (or 8,192 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 Castres - Mazamet 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 Castres - Mazamet 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):

• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• 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.
• Post Field served as a base for flight training for the Air Service.
• 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.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• Air Service/Corps units assigned to Post Field between 1919 and 1941

Facts about Castres - Mazamet Airport (DCM):

• The closest airport to Castres - Mazamet Airport (DCM) is Carcassonne Airport (CCF), which is located 23 miles (38 kilometers) S of DCM.
• In addition to being known as "Castres - Mazamet Airport", another name for DCM is "Aéroport de Castres - Mazamet".
• Castres - Mazamet Airport (DCM) currently has only 1 runway.
• The furthest airport from Castres - Mazamet Airport (DCM) is Chatham Islands (CHT), which is nearly antipodal to Castres - Mazamet Airport (meaning Castres - Mazamet Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,372 miles (19,910 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• Because of Castres - Mazamet Airport's relatively low elevation of 785 feet, planes can take off or land at Castres - Mazamet 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.