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):

• Ölgii Airport (ULG) currently has only 1 runway.
• Ölgii Airport handled 13,000 passengers last year.
• 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.

Facts about Henry Post Army Airfield (FSI):

• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• 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.
• 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.