Nonstop flight route between Hagåtña, Guam and Siem Reap, Cambodia:
Departure Airport:

Arrival Airport:

Distance from GUM to REP:
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- About this route
- GUM Airport Information
- REP Airport Information
- Facts about GUM
- Facts about REP
- Map of Nearest Airports to GUM
- List of Nearest Airports to GUM
- Map of Furthest Airports from GUM
- List of Furthest Airports from GUM
- Map of Nearest Airports to REP
- List of Nearest Airports to REP
- Map of Furthest Airports from REP
- List of Furthest Airports from REP
About this route:
A direct, nonstop flight between Guam International Airport (GUM), Hagåtña, Guam and Siem Reap-Angkor International Airport (REP), Siem Reap, Cambodia would travel a Great Circle distance of 2,751 miles (or 4,427 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 Guam 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 Guam 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:
IATA / ICAO Codes: | GUM / PGUM |
Airport Names: |
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Location: | Hagåtña, Guam |
GPS Coordinates: | 13°29'2"N by 144°47'49"E |
Area Served: | Guam |
Operator/Owner: | A.B. Won Pat International Airport Authority, Guam |
Airport Type: | Public |
Elevation: | 297 feet (91 meters) |
# of Runways: | 2 |
View all routes: | Routes from GUM |
More Information: | GUM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | REP / VDSR |
Airport Names: |
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Location: | Siem Reap, Cambodia |
GPS Coordinates: | 13°24'38"N by 103°48'46"E |
Area Served: | Siem Reab, Cambodia |
Airport Type: | Public |
Elevation: | 60 feet (18 meters) |
# of Runways: | 1 |
View all routes: | Routes from REP |
More Information: | REP Maps & Info |
Facts about Guam International Airport (GUM):
- Guam International Airport (GUM) has 2 runways.
- The closest airport to Guam International Airport (GUM) is Andersen Air Force Base (UAM), which is located only 11 miles (17 kilometers) NE of GUM.
- Travel to Guam was restricted to military personnel with a security clearance until 1962.
- In addition to being known as "Guam International Airport", another name for GUM is "Antonio B. Won Pat International Airport".
- Transit passengers are also inspected by the USCBP before being allowed to proceed to their connecting gate.
- Guam International Airport handled 2,807,205 passengers last year.
- Since Guam is outside the United States customs jurisdiction, passengers from all arrival flights go through GCQA inspection.
- Japan Airlines opened a flight crew training center at GUM in October 2013.
- The furthest airport from Guam International Airport (GUM) is Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho) (SSA), which is nearly antipodal to Guam International Airport (meaning Guam International Airport is almost on the exact opposite side of the Earth from Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho)), and is located 12,223 miles (19,671 kilometers) away in Salvador, Bahia, Brazil.
- A new passenger terminal building was opened in 1982, and the current, much larger terminal building was opened in phases between 1996 and 1998.
- Because of Guam International Airport's relatively low elevation of 297 feet, planes can take off or land at Guam 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.
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 Cambodian government has plans to replace the airport with a new one, 60 km from Siem Reap.
- 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 closest airport to Siem Reap-Angkor International Airport (REP) is Battambang Airport (BBM), which is located 45 miles (73 kilometers) WSW of REP.
- 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.