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

About this route:

A direct, nonstop flight between Kobuk Airport (OBU), Kobuk, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 3,195 miles (or 5,142 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 Kobuk 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 Kobuk 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 Kobuk Airport (OBU):

• The closest airport to Kobuk Airport (OBU) is Dahl Creek Airport (DCK), which is located only 2 miles (3 kilometers) N of OBU.
• In addition to being known as "Kobuk Airport", another name for OBU is "PAOB".
• The furthest airport from Kobuk Airport (OBU) is George Airport (GRJ), which is located 10,163 miles (16,356 kilometers) away in George, South Africa.
• Kobuk Airport (OBU) currently has only 1 runway.
• For the 12-month period ending September 29, 2011, the airport had 5,000 aircraft operations, an average of 13 per day, 100% air taxi.
• Because of Kobuk Airport's relatively low elevation of 142 feet, planes can take off or land at Kobuk 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.
• Kobuk Airport is a state owned, public use airport located in Kobuk, a city in the Northwest Arctic Borough of the U.S.
• Kobuk Airport covers an area of 167 acres at an elevation of 142 feet above mean sea level.
• As per the Federal Aviation Administration, this airport had 1,176 passenger boardings in calendar year 2008, 1,048 in 2009, and 1,255 in 2010.

Facts about Henry Post Army Airfield (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 was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
• 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.
• After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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 Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.