Nonstop flight route between Peru, Illinois, United States and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Illinois Valley Regional Airport (VYS), Peru, Illinois, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 683 miles (or 1,100 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 Illinois Valley Regional Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Illinois Valley Regional Airport (VYS):

• Because of Illinois Valley Regional Airport's relatively low elevation of 654 feet, planes can take off or land at Illinois Valley 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.
• The closest airport to Illinois Valley Regional Airport (VYS) is Chicago/Aurora Municipal Airport (AUZ), which is located 45 miles (73 kilometers) NE of VYS.
• In addition to being known as "Illinois Valley Regional Airport", another name for VYS is "Walter A. Duncan Field".
• Illinois Valley Regional Airport (VYS) has 2 runways.
• The furthest airport from Illinois Valley Regional Airport (VYS) is Margaret River Airport (MGV), which is located 11,020 miles (17,735 kilometers) away in Margaret River, Western Australia, Australia.

Facts about Henry Post Army Airfield (FSI):

• Air Service/Corps units assigned to Post Field between 1919 and 1941
• 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.
• 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.
• 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.
• 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.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.