Nonstop flight route between Chicago, Illinois, United States and Pituffik, Greenland:

About this route:

A direct, nonstop flight between Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States and Thule Air Base (THU), Pituffik, Greenland would travel a Great Circle distance of 2,454 miles (or 3,949 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 relatively short distance between Chicago O'Hare International Airport and Thule Air Base, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Chicago O'Hare International Airport (ORD):

• All international arrivals at O'Hare arrive at Terminal 5, as the other terminals do not have Customs facilities.
• The furthest airport from Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
• Total annual passenger volume at O'Hare reached 30 million in 1968, 40 million in 1976, 60 million in 1990 and 70 million in 1997.
• The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.
• Growth was slow at first.
• United Airlines is the largest airline at O'Hare, carrying over 45% of all passengers passing through the airport.
• Chicago O'Hare International Airport (ORD) has 8 runways.
• In the 1980s, after deregulation, TWA replaced Chicago with St.
• Until 2005, O'Hare was the world's busiest airport in number of takeoffs and landings.
• United and American both established nationwide hubs at the airport in the 1980s, which continue to operate today.
• Delta moved from Terminal 3 to Terminal 2 in 2009 in order to align its operations with merger partner Northwest Airlines.
• Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare International 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.

Facts about Thule Air Base (THU):

• In 1961, a Ballistic Missile Early Warning System radar was constructed at "J-Site," 21 km northeast of main base.
• 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.
• 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.
• The closest airport to Thule Air Base (THU) is Savissivik Heliport (SVR), which is located 69 miles (111 kilometers) ESE of THU.
• In addition to being known as "Thule Air Base", another name for THU is "Thule AB".
• 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.
• In the winter of 1956/57 three KC-97 tankers and alternately one of two RB-47H aircraft made polar flights to inspect Soviet defenses.
• 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.