Nonstop flight route between Fort Sill, Oklahoma, United States and Birjand, Iran:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Birjand International Airport (XBJ), Birjand, Iran would travel a Great Circle distance of 7,550 miles (or 12,151 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 Birjand International 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 Birjand International 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):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
• 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.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• 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 AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.

Facts about Birjand International Airport (XBJ):

• Birjand International Airport (XBJ) has 2 runways.
• The furthest airport from Birjand International Airport (XBJ) is Mataveri International Airport (IPC), which is located 11,653 miles (18,754 kilometers) away in Easter Island, Chile.
• In addition to being known as "Birjand International Airport", another name for XBJ is "فرودگاه بین المللی بیرجند".
• The closest airport to Birjand International Airport (XBJ) is Tabas Airport (TCX), which is located 147 miles (237 kilometers) WNW of XBJ.
• Because of Birjand International Airport's high elevation of 4,952 feet, planes must typically fly at a faster airspeed in order to takeoff or land at XBJ. Combined with a high temperature, this could make XBJ a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• In February 2012, Birjand International Airport saw the first traffic by a large aircraft, Iran Air's Airbus 300, on a test flight in order to prepare for Hajj traffic.