Nonstop flight route between Fort Sill, Oklahoma, United States and Kharkhorin, Mongolia:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Kharkhorin Airport (KHR), Kharkhorin, Mongolia would travel a Great Circle distance of 6,627 miles (or 10,665 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 Kharkhorin 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 Kharkhorin 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 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.
• 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.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• 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.

Facts about Kharkhorin Airport (KHR):

• The furthest airport from Kharkhorin Airport (KHR) is Cochrane Airfield (LGR), which is nearly antipodal to Kharkhorin Airport (meaning Kharkhorin Airport is almost on the exact opposite side of the Earth from Cochrane Airfield), and is located 12,222 miles (19,669 kilometers) away in Cochrane, Chile.
• The closest airport to Kharkhorin Airport (KHR) is Khujirt Airport (HJT), which is located 24 miles (39 kilometers) S of KHR.
• Because of Kharkhorin Airport's high elevation of 4,759 feet, planes must typically fly at a faster airspeed in order to takeoff or land at KHR. Combined with a high temperature, this could make KHR a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• Kharkhorin Airport (KHR) currently has only 1 runway.