Nonstop flight route between Bayan-Ölgii Province, Mongolia and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Ölgii Airport (ULG), Bayan-Ölgii Province, Mongolia and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 6,635 miles (or 10,678 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 Ölgii Airport and Henry Post Army Airfield, 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 Ölgii Airport and Henry Post Army Airfield. 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 Ölgii Airport (ULG):

• The furthest airport from Ölgii Airport (ULG) is Teniente Julio Gallardo Airfield (PNT), which is located 11,643 miles (18,737 kilometers) away in Puerto Natales, Chile.
• The closest airport to Ölgii Airport (ULG) is Khovd Airport (HVD), which is located 106 miles (170 kilometers) SE of ULG.
• Ölgii Airport (ULG) currently has only 1 runway.
• Ölgii Airport handled 13,000 passengers last year.

Facts about Henry Post Army Airfield (FSI):

• 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 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.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• 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.