Nonstop flight route between Fort Sill, Oklahoma, United States and Champaign-Urbana, Illinois, United States:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and University of Illinois Willard Airport (CMI), Champaign-Urbana, Illinois, United States would travel a Great Circle distance of 669 miles (or 1,076 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 University of Illinois Willard 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):

• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• 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.
• 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.

Facts about University of Illinois Willard Airport (CMI):

• Because of University of Illinois Willard Airport's relatively low elevation of 754 feet, planes can take off or land at University of Illinois Willard 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.
• University of Illinois Willard Airport (CMI) has 4 runways.
• The closest airport to University of Illinois Willard Airport (CMI) is Decatur Airport (DEC), which is located 34 miles (55 kilometers) WSW of CMI.
• On January 28, 1998 President Bill Clinton was in Champaign-Urbana for a speaking engagement at Assembly Hall and arrived at Willard Airport on Air Force One.
• The furthest airport from University of Illinois Willard Airport (CMI) is Margaret River Airport (MGV), which is located 11,084 miles (17,838 kilometers) away in Margaret River, Western Australia, Australia.
• Delta Air Lines dropped Willard Airport on August 31, 2010.Vision Airlines also ceased service to Willard Airport on January 6, 2012 after 3 weeks of service.