Nonstop flight route between Kotlas, Arkhangelsk Oblast, Russia and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Kotlas Airport (KSZ), Kotlas, Arkhangelsk Oblast, Russia and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 5,527 miles (or 8,895 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 Kotlas 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 Kotlas 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 Kotlas Airport (KSZ):

• Kotlas Airport (KSZ) currently has only 1 runway.
• In addition to being known as "Kotlas Airport", another name for KSZ is "Аэропорт Котлас".
• The closest airport to Kotlas Airport (KSZ) is Velikiy Ustyug (VUS), which is located 34 miles (55 kilometers) SSW of KSZ.
• Because of Kotlas Airport's relatively low elevation of 184 feet, planes can take off or land at Kotlas Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• The furthest airport from Kotlas Airport (KSZ) is Chatham Islands (CHT), which is located 10,318 miles (16,605 kilometers) away in Waitangi, Chatham Islands, New Zealand.

Facts about Henry Post Army Airfield (FSI):

• 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 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.