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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Middleton Island Airport (MDO), Middleton Island, Alaska, United States would travel a Great Circle distance of 2,740 miles (or 4,409 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 Middleton Island 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 Middleton Island 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):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
• 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.
• 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.
• 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.

Facts about Middleton Island Airport (MDO):

• Because of Middleton Island Airport's relatively low elevation of 100 feet, planes can take off or land at Middleton Island 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.
• Middleton Island Airport (MDO) has 2 runways.
• The furthest airport from Middleton Island Airport (MDO) is Port Elizabeth International Airport (PLZ), which is located 10,639 miles (17,122 kilometers) away in Port Elizabeth, South Africa.
• The closest airport to Middleton Island Airport (MDO) is Boswell Bay Airport (BSW), which is located 67 miles (109 kilometers) N of MDO.