Nonstop flight route between Chicago, Illinois, United States and Leiden, Netherlands:

About this route:

A direct, nonstop flight between Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States and Valkenburg Naval Air Base (LID), Leiden, Netherlands would travel a Great Circle distance of 4,101 miles (or 6,600 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 Chicago O'Hare International Airport and Valkenburg Naval Air Base, 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 Chicago O'Hare International Airport and Valkenburg Naval Air Base. 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 Chicago O'Hare International Airport (ORD):

• Commercial passenger flights started in 1955 and by the following year O'Hare was served by American, BOAC, Braniff, Capital, Delta, Eastern, North Central, Pan Am, TWA and United, along with freight airlines Riddle and Slick.
• 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.
• Ground was broken for the main terminal complex April 1, 1959.
• 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.
• Delta moved from Terminal 3 to Terminal 2 in 2009 in order to align its operations with merger partner Northwest Airlines.
• Terminal 1 houses all United Airlines domestic flights as well as international departures, and also departures for a select number of Star Alliance partners, including Lufthansa and All Nippon Airways.
• Due to the construction of Terminal 1 for United, international flights were relocated to a temporary Terminal 4 from 1984 until 1993.
• 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.
• Chicago O'Hare International Airport (ORD) has 8 runways.
• In 1949, the airport was renamed "O'Hare International Airport" to honor Edward O'Hare, the U.S.

Facts about Valkenburg Naval Air Base (LID):

• The closest airport to Valkenburg Naval Air Base (LID) is Rotterdam The Hague Airport (RTM), which is located only 15 miles (23 kilometers) S of LID.
• A Zeppelin NT at Valkenburg
• In March of 2014 Valkenburg was used as the home base for both police and military helicopters providing security during the 2014 Nuclear Security Summit.
• In addition to being known as "Valkenburg Naval Air Base", another name for LID is "Vliegkamp Valkenburg".
• Construction of the air base was commenced in 1939, but not completed before the start of the Second World War.
• Because of Valkenburg Naval Air Base's relatively low elevation of 0 feet, planes can take off or land at Valkenburg Naval Air Base 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.
• After the war it briefly served as a home for the Royal Netherlands Air Force air transport wing, but in 1947 the Navy received control of the air base.
• Valkenburg Naval Air Base (LID) has 2 runways.
• The furthest airport from Valkenburg Naval Air Base (LID) is Chatham Islands (CHT), which is located 11,858 miles (19,084 kilometers) away in Waitangi, Chatham Islands, New Zealand.