Nonstop flight route between Fort Sill, Oklahoma, United States and Alpena, Michigan, United States:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Alpena County Regional Airport (APN), Alpena, Michigan, United States would travel a Great Circle distance of 1,064 miles (or 1,712 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 relatively short distance between Henry Post Army Airfield and Alpena County Regional Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Henry Post Army Airfield (FSI):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• 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.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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 Alpena County Regional Airport (APN):

• The closest airport to Alpena County Regional Airport (APN) is Oscoda-Wurtsmith Airport (OSC), which is located 44 miles (71 kilometers) S of APN.
• Alpena County Regional Airport (APN) has 2 runways.
• The furthest airport from Alpena County Regional Airport (APN) is Margaret River Airport (MGV), which is located 11,184 miles (17,999 kilometers) away in Margaret River, Western Australia, Australia.
• Alpena County Regional Airport covers an area of 3,084 acres at an elevation of 690 feet above mean sea level.
• Because of Alpena County Regional Airport's relatively low elevation of 690 feet, planes can take off or land at Alpena County Regional 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.
• It is said to be the "Proud home of Alpena Combat Readiness Training Center," the host unit of the Michigan Air National Guard's Alpena Air National Guard Base.
• Several scenes of the film Die Hard 2 were shot there.