Nonstop flight route between Xining, Qinghai, China and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Xining Caojiabao Airport (XNN), Xining, Qinghai, China and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 7,346 miles (or 11,822 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 Xining Caojiabao 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 Xining Caojiabao 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 Xining Caojiabao Airport (XNN):

• The closest airport to Xining Caojiabao Airport (XNN) is Lanzhou Zhongchuan Airport (LHW), which is located 88 miles (141 kilometers) E of XNN.
• Xining Caojiabao Airport handled 2,030,378 passengers last year.
• In addition to being known as "Xining Caojiabao Airport", other names for XNN include "西宁曹家堡机场" and "Xīníng Cáojiābǎo Jīchǎng".
• Because of Xining Caojiabao Airport's high elevation of 7,119 feet, planes must typically fly at a faster airspeed in order to takeoff or land at XNN. Combined with a high temperature, this could make XNN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Xining Caojiabao Airport (XNN) is Carriel Sur International Airport (CCP), which is nearly antipodal to Xining Caojiabao Airport (meaning Xining Caojiabao Airport is almost on the exact opposite side of the Earth from Carriel Sur International Airport), and is located 12,165 miles (19,578 kilometers) away in Concepción, Bío Bío Region, Chile.
• Xining Caojiabao Airport (XNN) currently has only 1 runway.

Facts about Henry Post Army Airfield (FSI):

• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Post Field served as a base for flight training for the Air Service.
• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• 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.
• 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.
• 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.