Nonstop flight route between Chicago, Illinois, United States and Duncan, Oklahoma, United States:

About this route:

A direct, nonstop flight between Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States and Halliburton Field (DUC), Duncan, Oklahoma, United States would travel a Great Circle distance of 752 miles (or 1,210 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 Halliburton Field, 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):

• Chicago O'Hare International Airport (ORD) has 8 runways.
• 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 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.
• 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.
• United and American both established nationwide hubs at the airport in the 1980s, which continue to operate today.
• Chicago O'Hare International Airport, also known as O'Hare Airport, O'Hare Field, Chicago International Airport, or simply O'Hare, is a major airport located in the northwestern-most corner of Chicago, Illinois, 17 miles northwest of the Chicago Loop.
• Following the closure of the O'Hare Air Reserve Station, the former USAF facilities were redeveloped for air cargo and general aviation.
• Until 2005, O'Hare was the world's busiest airport in number of takeoffs and landings.
• 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.
• 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.

Facts about Halliburton Field (DUC):

• The furthest airport from Halliburton Field (DUC) is Sir Gaëtan Duval Airport (RRG), which is located 10,908 miles (17,554 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Halliburton Field (DUC) is Lawton–Fort Sill Regional Airport (LAW), which is located 27 miles (43 kilometers) WNW of DUC.
• Halliburton Field (DUC) currently has only 1 runway.
• In addition to being known as "Halliburton Field", another name for DUC is "Duncan Municipal Airport".