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):

• Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• 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.
• 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.
• 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.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• Post Field served as a base for flight training for the Air Service.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• 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):

• 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.
• The closest airport to Kharkhorin Airport (KHR) is Khujirt Airport (HJT), which is located 24 miles (39 kilometers) S of 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.
• Kharkhorin Airport (KHR) currently has only 1 runway.