Nonstop flight route between Rapid City, South Dakota, United States and Siem Reap, Cambodia:

About this route:

A direct, nonstop flight between Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States and Siem Reap-Angkor International Airport (REP), Siem Reap, Cambodia would travel a Great Circle distance of 8,115 miles (or 13,060 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 Ellsworth Air Force Base 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 Ellsworth Air Force Base 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 Ellsworth Air Force Base (RCA):

• Air Defense Command deactivated the Ellsworth radar site on 15 August 1962 and the 740th was discontinued.
• In March 1944, heavy bomber operational training ended and the 225th Army Air Force Base Unit began training of replacement personnel for deployed heavy bombardment units in the overseas combat theaters.
• The 12th Air Division moved to Ellsworth on 15 July 1988.
• The closest airport to Ellsworth Air Force Base (RCA) is Rapid City Regional Airport (RAP), which is located only 7 miles (11 kilometers) S of RCA.
• In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
• Ellsworth's population of approximately 8,000 includes military members, family members and civilian employees.
• The installation changed names a few more times during its early years.
• Military organizations periodically upgrade manpower and machines from time to time to meet new national security requirements and Ellsworth Air Force Base's organizations were no exception.
• The furthest airport from Ellsworth Air Force Base (RCA) is Sir Gaëtan Duval Airport (RRG), which is located 10,579 miles (17,026 kilometers) away in Rodrigues Island, Mauritius.

Facts about Siem Reap-Angkor International Airport (REP):

• 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.
• 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.
• 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 airport resides at an elevation of 60 feet above mean sea level.
• Siem Reap-Angkor International Airport (REP) currently has only 1 runway.
• In addition to being known as "Siem Reap-Angkor International Airport", other names for REP include "សៀមរាបព្រលានយន្តហោះអន្តរជាតិ" and "Aéroport International de Siem Reab".
• As of 2008, extensions to the airport's apron and parking areas are taking place.