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

About this route:

A direct, nonstop flight between Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States and Siem Reap-Angkor International Airport (REP), Siem Reap, Cambodia 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 Chicago O'Hare International Airport and Siem Reap-Angkor 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 Chicago O'Hare International Airport and Siem Reap-Angkor 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 Chicago O'Hare International Airport (ORD):

• Chicago O'Hare International Airport (ORD) has 8 runways.
• Douglas Company's contract ended in 1945 and though plans were proposed to build commercial aircraft, the company ultimately chose to concentrate production on the west coast.
• The original Douglas Aircraft C-54 Skymaster transport manufacturing plant on the northeast side of the airport became a United States Air Force Air National Guard and Air Force Reserve facility after World War II.
• Terminal 1 houses All Nippon Airways's Chicago office.
• 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.
• In the 1980s, after deregulation, TWA replaced Chicago with St.
• 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.
• In 1945, the facility was chosen by the city of Chicago as the site for a facility to meet future aviation demands.

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.
• In addition to being known as "Siem Reap-Angkor International Airport", other names for REP include "សៀមរាបព្រលានយន្តហោះអន្តរជាតិ" and "Aéroport International de Siem Reab".
• Siem Reap-Angkor International Airport (REP) currently has only 1 runway.
• Siem Reap International Airport is Cambodia's busiest airport serving Siem Reap, a popular tourist destination due to nearby Angkor Wat.
• The closest airport to Siem Reap-Angkor International Airport (REP) is Battambang Airport (BBM), which is located 45 miles (73 kilometers) WSW of REP.
• As of 2008, extensions to the airport's apron and parking areas are taking place.
• 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.