Nonstop flight route between Fort Sill, Oklahoma, United States and Chalkyitsik, Alaska, United States:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Chalkyitsik Airport (CIK), Chalkyitsik, Alaska, United States would travel a Great Circle distance of 2,854 miles (or 4,593 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 Chalkyitsik 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 Chalkyitsik 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):

• 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.
• Post Field served as a base for flight training for the Air Service.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• 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.
• 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.
• 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• 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 first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.

Facts about Chalkyitsik Airport (CIK):

• The furthest airport from Chalkyitsik Airport (CIK) is Port Elizabeth International Airport (PLZ), which is located 10,139 miles (16,317 kilometers) away in Port Elizabeth, South Africa.
• Chalkyitsik Airport (CIK) currently has only 1 runway.
• The closest airport to Chalkyitsik Airport (CIK) is Fort Yukon Airport (FYU), which is located 42 miles (67 kilometers) W of CIK.
• Because of Chalkyitsik Airport's relatively low elevation of 544 feet, planes can take off or land at Chalkyitsik 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.