Nonstop flight route between St. Mary's, Alaska, United States and Siem Reap, Cambodia:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(13°24'38"N by 103°48'46"E)
Distance from KSM to REP:
5,494.05 miles (8,841.80 km)
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Jump to:
- About this route
- KSM Airport Information
- REP Airport Information
- Facts about KSM
- Facts about REP
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- 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 St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Siem Reap-Angkor International Airport (REP), Siem Reap, Cambodia would travel a Great Circle distance of 5,494 miles (or 8,842 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 St. Mary's 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 St. Mary's 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: | KSM / PASM |
| Airport Name: | St. Mary's Airport |
| Location: | St. Mary's, Alaska, United States |
| GPS Coordinates: | 62°3'38"N by 163°18'6"W |
| Operator/Owner: | Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 312 feet (95 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KSM |
| More Information: | KSM Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | REP / VDSR |
| Airport Names: |
|
| 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 St. Mary's Airport (KSM):
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- St. Mary's Airport (KSM) has 2 runways.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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):
- 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.
- Siem Reap-Angkor International Airport (REP) currently has only 1 runway.
- 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.
- 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".
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12.52 miles (20.15 km) W | Mountain Village Airport (MOU) | Mountain Village, Alaska, United States |     |
| 2 | 15.71 miles (25.28 km) ESE | Pilot Station Airport (PQS) | Pilot Station, Alaska, United States | |
| 3 | 43.61 miles (70.18 km) ESE | Marshall Don Hunter Sr. Airport (MLL) | Marshall, Alaska, United States | |
| 4 | 58.95 miles (94.87 km) WNW | Sheldon Point Airport (SXP) | Sheldon Point, Alaska, United States | |
| 5 | 61.02 miles (98.20 km) NW | Alakanuk Airport (AUK) | Alakanuk, Alaska, United States | |
| 6 | 62.90 miles (101.24 km) NW | Emmonak Airport (EMK) | Emmonak, Alaska, United States | |
| 7 | 67.40 miles (108.48 km) N | Kotlik Airport (KOT) | Kotlik, Alaska, United States | |
| 8 | 67.43 miles (108.52 km) ESE | Russian Mission Airport (RSH) | Russian Mission, Alaska, United States | |
| 9 | 75.21 miles (121.04 km) W | Scammon Bay Airport (SCM) | Scammon Bay, Alaska, United States | |
| 10 | 83.21 miles (133.91 km) WSW | Chevak Airport (VAK) | Chevak, Alaska, United States | |
| 11 | 84.72 miles (136.35 km) SSE | Nunapitchuk Airport (NUP) | Nunapitchuk, Alaska, United States | |
| 12 | 85.97 miles (138.35 km) SSE | Kasigluk Airport (KUK) | Kasigluk, Alaska, United States | |
| 13 | 88.49 miles (142.42 km) W | Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site (CZF) | Cape Romanzof, Alaska, United States | |
| 14 | 89.19 miles (143.53 km) SSW | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| 15 | 89.22 miles (143.59 km) SSE | Atmautluak Airport (ATT) | Atmautluak, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,494.08 miles (16,888.54 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,482.44 miles (16,869.80 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,457.83 miles (16,830.21 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,416.76 miles (16,764.12 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,371.90 miles (16,691.92 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,261.64 miles (16,514.46 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,199.66 miles (16,414.71 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 8 | 10,195.75 miles (16,408.43 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,169.94 miles (16,366.89 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 10 | 10,169.94 miles (16,366.89 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 11 | 10,157.43 miles (16,346.75 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,151.99 miles (16,338.00 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,149.37 miles (16,333.79 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 14 | 10,143.31 miles (16,324.03 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,133.50 miles (16,308.25 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 45.17 miles (72.70 km) WSW | Battambang Airport (BBM) | Battambang, Cambodia | |
| 2 | 64.29 miles (103.46 km) SSE | Krakor Airport (KZD) | Krakor, Cambodia | |
| 3 | 94.51 miles (152.11 km) SSE | Kampong Chhnang Airport (KZC) | Kampong Chhnang, Kampong Chhnang Province, Cambodia | |
| 4 | 127.62 miles (205.38 km) SW | Trat Airport (TDX) | Trat, Thailand | |
| 5 | 131.18 miles (211.11 km) NNW | Buriram Airport (BFV) | Buriram (Buri Ram), Thailand | |
| 6 | 135.81 miles (218.57 km) SSW | Koh Kong Airport (KKZ) | Koh Kong, Koh Kong Province, Cambodia | |
| 7 | 145.55 miles (234.24 km) NNE | Ubon Ratchathani Airport ท่าอากาศยานอุบลราชธานี (UBP) | Ubon Ratchathani, Thailand | |
| 8 | 146.30 miles (235.45 km) NW | Nakhon Ratchasima Airport (NAK) | Nakhon Ratchasima, Thailand | |
| 9 | 146.38 miles (235.58 km) SSE | Phnom Penh International Airport (PNH) | Phnom Penh, Cambodia | |
| 10 | 193.28 miles (311.05 km) S | Kampot Airport (KMT) | Kampot, Kampot Province, Cambodia | |
| 11 | 195.62 miles (314.82 km) WSW | U-Tapao-Rayong-Pattaya International Airport (UTP) | Rayong, Thailand | |
| 12 | 195.93 miles (315.32 km) S | Sihanoukvill International Airportអាកាសយានដ្ឋានអន្តរជាតិក្រុងព្រះសីហនុ Aéroport International de Sihanoukville (KOS) | Sihanoukville, Cambodia | |
| 13 | 206.64 miles (332.56 km) W | Suvarnabhumi Airport (BKK) | Bangkok, Thailand | |
| 14 | 206.64 miles (332.56 km) W | Suvarnabhumi Airport (NBK) | Bangkok, Thailand | |
| 15 | 214.12 miles (344.59 km) E | Ratanakiri Airport (RBE) | Ratanakiri, Cambodia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,413.58 miles (19,977.68 km) S | Capitán FAP Renán Elías Olivera International Airport (PIO) | Pisco, Peru | |
| 2 | 12,322.30 miles (19,830.77 km) SSE | Jorge Chávez International Airport (LIM) | Callao (near Lima), Peru | |
| 3 | 12,314.48 miles (19,818.18 km) SSW | Jauja AirportFrancisco Carle Airport (JAU) | Jauja, Peru | |
| 4 | 12,307.58 miles (19,807.08 km) SW | Maria Reiche Neuman Airport (NZC) | Nazca, Ica Region, Peru | |
| 5 | 12,302.28 miles (19,798.55 km) W | Coronel FAP Alfredo Mendívil Duarte Airport (AYP) | Ayacucho, Peru | |
| 6 | 12,302.28 miles (19,798.55 km) W | Coronel FAP Alfredo Mendívil Duarte Airport (AYC) | Ayacucho, Peru | |
| 7 | 12,245.28 miles (19,706.81 km) W | Andahuaylas Airport (ANS) | Andahuaylas, Peru | |
| 8 | 12,192.78 miles (19,622.32 km) S | Alf. FAP David Figueroa Fernandini (HUU) | Huánuco, Huánuco Region, Peru | |
| 9 | 12,151.62 miles (19,556.08 km) S | Tingo María Airport (TGI) | Tingo María, Peru | |
| 10 | 12,151.54 miles (19,555.95 km) W | Alejandro Velasco Astete International Airport (CUZ) | Cusco, Cusco Region, Peru | |
| 11 | 12,140.23 miles (19,537.76 km) SSE | Comandante FAP Germán Arias Graziani Airport (ATA) | Huaraz, Peru | |
| 12 | 12,102.55 miles (19,477.11 km) SSE | Teniente FAP Jaime Montreuil Morales Airport (CHM) | Chimbote, Ancash Region, Peru | |
| 13 | 12,072.26 miles (19,428.38 km) SSW | FAP Captain David Abenzur Rengifo International Airport (PCL) | Pucallpa, Peru | |
| 14 | 12,068.70 miles (19,422.64 km) SW | Rodríguez Ballón International Airport (AQP) | Arequipa, Peru | |
| 15 | 12,018.62 miles (19,342.05 km) SSE | Capitán FAP Carlos Martínez de Pinillos International Airport (TRU) | Trujillo, Peru | |