Nonstop flight route between Ust-Kut, Irkutsk Oblast, Russia and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Ust-Kut Airport (UKX), Ust-Kut, Irkutsk Oblast, Russia and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 5,959 miles (or 9,589 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 Ust-Kut 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 Ust-Kut 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 Ust-Kut Airport (UKX):

• In addition to being known as "Ust-Kut Airport", another name for UKX is "Аэропорт Усть-Кут".
• Ust-Kut Airport handled 24,291 passengers last year.
• Air traffic control provides Ust-Kut Department "Air Navigation of Eastern Siberia" FSUE Unitary enterprise "State ATM Corporation".Monitoring weather and meteoconsultation ANO "Irkutsk Meteoagency"
• Ust-Kut Airport (UKX) currently has only 1 runway.
• The furthest airport from Ust-Kut Airport (UKX) is Ushuaia International Airport (USH), which is nearly antipodal to Ust-Kut Airport (meaning Ust-Kut Airport is almost on the exact opposite side of the Earth from Ushuaia International Airport), and is located 12,167 miles (19,580 kilometers) away in Ushuaia, Tierra del Fuego, Argentina.
• The closest airport to Ust-Kut Airport (UKX) is Kirensk Airport (KCK), which is located 108 miles (173 kilometers) NE of UKX.
• Economic prospects are directly linked to the prospects of development of large oilfields and operation of Eastern Siberia – Pacific Ocean oil pipeline.
• During World War II an airfield was built here for the Alaska-Siberian air route used to ferry American Lend-Lease aircraft to the Eastern Front.

Facts about Henry Post Army Airfield (FSI):

• 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 is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
• 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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.
• 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.