Nonstop flight route between Siem Reap, Cambodia and Chicago, Illinois, United States:

About this route:

A direct, nonstop flight between Siem Reap-Angkor International Airport (REP), Siem Reap, Cambodia and Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States would travel a Great Circle distance of 8,538 miles (or 13,740 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 Siem Reap-Angkor International Airport and Chicago O'Hare International 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 Siem Reap-Angkor International Airport and Chicago O'Hare International 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 Siem Reap-Angkor International Airport (REP):

• The furthest airport from Siem Reap-Angkor International Airport (REP) is Capitán FAP Renán Elías Olivera International Airport (PIO), which is nearly antipodal to Siem Reap-Angkor International Airport (meaning Siem Reap-Angkor International Airport is almost on the exact opposite side of the Earth from Capitán FAP Renán Elías Olivera International Airport), and is located 12,414 miles (19,978 kilometers) away in Pisco, Peru.
• As of 2008, extensions to the airport's apron and parking areas are taking place.
• In addition to being known as "Siem Reap-Angkor International Airport", other names for REP include "សៀមរាបព្រលានយន្តហោះអន្តរជាតិ" and "Aéroport International de Siem Reab".
• Because of Siem Reap-Angkor International Airport's relatively low elevation of 60 feet, planes can take off or land at Siem Reap-Angkor 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.
• The closest airport to Siem Reap-Angkor International Airport (REP) is Battambang Airport (BBM), which is located 45 miles (73 kilometers) WSW of REP.
• Siem Reap-Angkor International Airport (REP) currently has only 1 runway.
• The airport resides at an elevation of 60 feet above mean sea level.

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

• Growth was slow at first.
• 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.
• 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.
• 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.
• All international arrivals at O'Hare arrive at Terminal 5, as the other terminals do not have Customs facilities.
• The airport was constructed in 1942–43 as a manufacturing plant for Douglas C-54s during World War II.
• A$80 million renovation of Concourse G in Terminal 3 designed by Teng & Associates, Inc.
• 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.
• During this era international flights used Terminal 1.