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):

• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• 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.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• 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.
• Post Field served as a base for flight training for the Air Service.
• 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.

Facts about Bulgan Airport (UGA):

• The closest airport to Bulgan Airport (UGA) is Kharkhorin Airport (KHR), which is located 115 miles (185 kilometers) SSW of UGA.
• Bulgan Airport (UGA) currently has only 1 runway.
• 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.
• 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.