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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Bulgan Airport (UGA), Bulgan, Mongolia would travel a Great Circle distance of 6,512 miles (or 10,480 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 Bulgan 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 Bulgan 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):

• 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.
• 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.
• 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.
• Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• 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 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.

Facts about Bulgan Airport (UGA):

• The furthest airport from Bulgan Airport (UGA) is Cochrane Airfield (LGR), which is nearly antipodal to Bulgan Airport (meaning Bulgan Airport is almost on the exact opposite side of the Earth from Cochrane Airfield), and is located 12,224 miles (19,673 kilometers) away in Cochrane, Chile.
• Bulgan Airport (UGA) currently has only 1 runway.
• The closest airport to Bulgan Airport (UGA) is Kharkhorin Airport (KHR), which is located 115 miles (185 kilometers) SSW of UGA.
• Because of Bulgan Airport's high elevation of 4,236 feet, planes must typically fly at a faster airspeed in order to takeoff or land at UGA. Combined with a high temperature, this could make UGA a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.