Nonstop flight route between Pituffik, Greenland and Xining, Qinghai, China:

About this route:

A direct, nonstop flight between Thule Air Base (THU), Pituffik, Greenland and Xining Caojiabao Airport (XNN), Xining, Qinghai, China would travel a Great Circle distance of 4,615 miles (or 7,427 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 Thule Air Base and Xining Caojiabao 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 Thule Air Base and Xining Caojiabao 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 Thule Air Base (THU):

• A delegation from NATO's Parliamentary Assembly visited Thule in early September 2010 and were told by the base commander that, at that time, approximately 600 personnel were serving at Thule, a mix of mostly U.S.
• The closest airport to Thule Air Base (THU) is Savissivik Heliport (SVR), which is located 69 miles (111 kilometers) ESE of THU.
• After the German occupation of Denmark on 9 April 1940, Henrik Kauffmann Danish Ambassador to the United States, made an agreement "In the name of the king" with the United States authorizing the United States to defend the Danish colonies on Greenland from German aggression - this agreement faced Kaufmann with a charge of high treason.
• Originally established as a Strategic Air Command installation, Thule would periodically serve as a dispersal base for B-36 Peacemaker and B-47 Stratojet aircraft during the 1950s, as well as providing an ideal site to test the operability and maintainability of these weapon systems in extreme cold weather.
• In addition to being known as "Thule Air Base", another name for THU is "Thule AB".
• Thule Air Base is also home to the 821st Air Base Group and is responsible for air base support within the Thule Defense Area for the multinational population of "Team Thule." The base hosts the 12th Space Warning Squadron which operates a Ballistic Missile Early Warning System designed to detect and track ICBMs launched against North America.
• The furthest airport from Thule Air Base (THU) is Hobart International Airport (HBA), which is located 9,883 miles (15,905 kilometers) away in Hobart, Tasmania, Australia.
• In 1957 construction began on 4 Nike Missile sites around the base, and they and their radar systems were operational by the end of 1958.
• The ratification of the treaty in 1951 did not change much, except that the Danish national flag Dannebrog must be side by side with Stars and Stripes on the base.

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.
• 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".
• 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 handled 2,030,378 passengers last year.
• 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.
• Xining Caojiabao Airport (XNN) currently has only 1 runway.