Nonstop flight route between Fort Sill, Oklahoma, United States and Stara Zagora, Bulgaria:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Stara Zagora Airport (SZR), Stara Zagora, Bulgaria would travel a Great Circle distance of 6,049 miles (or 9,734 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 Stara Zagora 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 Stara Zagora 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):

• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• 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.
• 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.
• 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.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.

Facts about Stara Zagora Airport (SZR):

• The furthest airport from Stara Zagora Airport (SZR) is Chatham Islands (CHT), which is located 11,320 miles (18,218 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• The closest airport to Stara Zagora Airport (SZR) is Haskovo Malevo Airport (HKV), which is located 28 miles (45 kilometers) S of SZR.
• Because of Stara Zagora Airport's relatively low elevation of 643 feet, planes can take off or land at Stara Zagora 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.
• In addition to being known as "Stara Zagora Airport", other names for SZR include "Letishte Stara Zagora" and "Летище Стара Загора".