Nonstop flight route between Sullivan, Indiana, United States and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Sullivan County Airport (SIV), Sullivan, Indiana, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 679 miles (or 1,092 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 Sullivan County 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 Sullivan County Airport (SIV):

• Sullivan County Airport (SIV) currently has only 1 runway.
• The furthest airport from Sullivan County Airport (SIV) is Margaret River Airport (MGV), which is located 11,138 miles (17,926 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Sullivan County Airport's relatively low elevation of 540 feet, planes can take off or land at Sullivan County 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 Sullivan County Airport (SIV) is Ed-Air Airport (OTN), which is located only 18 miles (30 kilometers) S of SIV.

Facts about Henry Post Army Airfield (FSI):

• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• 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.
• 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.
• 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.
• 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.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.