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

About this route:

A direct, nonstop flight between Old Harbor Airport (OLH), Old Harbor, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 2,954 miles (or 4,753 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 Old Harbor 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 Old Harbor 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 Old Harbor Airport (OLH):

• The closest airport to Old Harbor Airport (OLH) is Amook Bay Seaplane Base (AOS), which is located 27 miles (43 kilometers) NW of OLH.
• Because of Old Harbor Airport's relatively low elevation of 55 feet, planes can take off or land at Old Harbor 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.
• Old Harbor Airport is a state owned, public use airport located two nautical miles northeast of the central business district of Old Harbor, a city in the Kodiak Island Borough in the U.S.
• Old Harbor Airport (OLH) currently has only 1 runway.
• The furthest airport from Old Harbor Airport (OLH) is Port Elizabeth International Airport (PLZ), which is located 10,831 miles (17,430 kilometers) away in Port Elizabeth, South Africa.
• In addition to being known as "Old Harbor Airport", another name for OLH is "6R7".
• Old Harbor Airport resides at elevation of 55 feet above mean sea level.

Facts about Henry Post Army Airfield (FSI):

• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• Post Field served as a base for flight training for the Air Service.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• 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.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.