Nonstop flight route between Obock, Djibouti and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Obock Airport (OBC), Obock, Djibouti and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 8,353 miles (or 13,443 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 large distance between Obock Airport and Henry Post Army Airfield, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Obock Airport and Henry Post Army Airfield. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Obock Airport (OBC):

• Because of Obock Airport's relatively low elevation of 69 feet, planes can take off or land at Obock 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 furthest airport from Obock Airport (OBC) is Atuona Airport (AUQ), which is nearly antipodal to Obock Airport (meaning Obock Airport is almost on the exact opposite side of the Earth from Atuona Airport), and is located 12,219 miles (19,665 kilometers) away in Atuona, Marquesas Islands, French Polynesia.
• The closest airport to Obock Airport (OBC) is Moucha Airport (MHI), which is located only 18 miles (29 kilometers) SSW of OBC.

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.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
• 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.
• 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.