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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Granite Mountain Air Station (GMT), Granite Mountain, Alaska, United States would travel a Great Circle distance of 3,295 miles (or 5,304 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 Granite Mountain Air Station, 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 Granite Mountain Air Station. 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):

• 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.
• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• 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.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• Henry Post Army Airfield (FSI) currently has only 1 runway.

Facts about Granite Mountain Air Station (GMT):

• The furthest airport from Granite Mountain Air Station (GMT) is Cape Town International Airport (CPT), which is located 10,265 miles (16,520 kilometers) away in Cape Town, South Africa.
• The closest airport to Granite Mountain Air Station (GMT) is Haycock Airport (HAY), which is located only 14 miles (23 kilometers) SSE of GMT.
• In addition to being known as "Granite Mountain Air Station", another name for GMT is "GSZ".
• Granite Mountain Air Station (GMT) currently has only 1 runway.