Nonstop flight route between Imperial, California, United States and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Imperial County Airport (IPL), Imperial, California, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 994 miles (or 1,599 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 Imperial 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 Imperial County Airport (IPL):

• Its first airline flights were Bonanza DC-3s about 1953.
• Imperial County Airport covers an area of 370 acres at an elevation of 54 feet below mean sea level.
• The furthest airport from Imperial County Airport (IPL) is Sir Gaëtan Duval Airport (RRG), which is located 11,531 miles (18,557 kilometers) away in Rodrigues Island, Mauritius.
• Imperial County Airport (IPL) has 2 runways.
• In addition to being known as "Imperial County Airport", another name for IPL is "Boley Field".
• As per the Federal Aviation Administration, this airport had 7,061 passenger boardings in calendar year 2008, 5,641 in 2009, and 4,752 in 2010.
• The closest airport to Imperial County Airport (IPL) is Naval Air Facility El Centro (NJK), which is located only 5 miles (9 kilometers) W of IPL.
• The airport is located one nautical mile south of the central business district of Imperial, California, partially in the City of Imperial and partially in an unincorporated area of Imperial County.
• Because of Imperial County Airport's relatively low elevation of -54 feet, planes can take off or land at Imperial 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.

Facts about Henry Post Army Airfield (FSI):

• 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.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.