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

About this route:

A direct, nonstop flight between Twin Hills Airport (TWA), Twin Hills, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 3,220 miles (or 5,182 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 Twin Hills 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 Twin Hills 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 Twin Hills Airport (TWA):

• Twin Hills Airport is a state-owned, public-use airport serving Twin Hills, in the Dillingham Census Area of the U.S.
• Twin Hills Airport (TWA) currently has only 1 runway.
• The furthest airport from Twin Hills Airport (TWA) is Cape Town International Airport (CPT), which is located 10,701 miles (17,222 kilometers) away in Cape Town, South Africa.
• The closest airport to Twin Hills Airport (TWA) is Togiak Airport (TOG), which is located only 5 miles (7 kilometers) WSW of TWA.
• Because of Twin Hills Airport's relatively low elevation of 82 feet, planes can take off or land at Twin Hills 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 "Twin Hills Airport", another name for TWA is "A63".

Facts about Henry Post Army Airfield (FSI):

• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• 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.
• 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.
• 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.
• Air Service/Corps units assigned to Post Field between 1919 and 1941