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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Circle City Airport (IRC), Circle, Alaska, United States would travel a Great Circle distance of 2,837 miles (or 4,565 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 Circle City 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 Circle City 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):

• Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
• 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 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.
• Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
• 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.

Facts about Circle City Airport (IRC):

• As per Federal Aviation Administration records, the airport had 303 passenger boardings in calendar year 2008, 377 enplanements in 2009, and 355 in 2010.
• Because of Circle City Airport's relatively low elevation of 613 feet, planes can take off or land at Circle City 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.
• In addition to being known as "Circle City Airport", another name for IRC is "CRC".
• Circle City Airport (IRC) currently has only 1 runway.
• The closest airport to Circle City Airport (IRC) is Central Airport (CEM), which is located 27 miles (43 kilometers) SW of IRC.
• The furthest airport from Circle City Airport (IRC) is Port Elizabeth International Airport (PLZ), which is located 10,196 miles (16,409 kilometers) away in Port Elizabeth, South Africa.