Nonstop flight route between Fort Sill, Oklahoma, United States and Dera Ismail Khan, Pakistan:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Dera Ismail Khan Airport (DSK), Dera Ismail Khan, Pakistan would travel a Great Circle distance of 7,786 miles (or 12,530 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 Henry Post Army Airfield and Dera Ismail Khan Airport, 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 Henry Post Army Airfield and Dera Ismail Khan Airport. 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 Henry Post Army Airfield (FSI):

• Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
• 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.
• 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.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• 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.

Facts about Dera Ismail Khan Airport (DSK):

• Because of Dera Ismail Khan Airport's relatively low elevation of 594 feet, planes can take off or land at Dera Ismail Khan 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.
• Dera Ismail Khan Airport (DSK) currently has only 1 runway.
• The closest airport to Dera Ismail Khan Airport (DSK) is PAF Base M.M. Alam (MWD), which is located 60 miles (96 kilometers) NE of DSK.
• The furthest airport from Dera Ismail Khan Airport (DSK) is Mataveri International Airport (IPC), which is nearly antipodal to Dera Ismail Khan Airport (meaning Dera Ismail Khan Airport is almost on the exact opposite side of the Earth from Mataveri International Airport), and is located 12,108 miles (19,487 kilometers) away in Easter Island, Chile.
• In addition to being known as "Dera Ismail Khan Airport", another name for DSK is "RYK".