Nonstop flight route between St. Mary's, Alaska, United States and Sanya, Hainan, China:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(18°18'10"N by 109°24'44"E)
Distance from KSM to SYX:
5,018.41 miles (8,076.33 km)
Share this route:
Jump to:
- About this route
- KSM Airport Information
- SYX Airport Information
- Facts about KSM
- Facts about SYX
- 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 SYX
- List of Nearest Airports to SYX
- Map of Furthest Airports from SYX
- List of Furthest Airports from SYX
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Sanya Phoenix International Airport (SYX), Sanya, Hainan, China would travel a Great Circle distance of 5,018 miles (or 8,076 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 Sanya Phoenix 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 Sanya Phoenix 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: | SYX / ZJSY |
| Airport Names: |
|
| Location: | Sanya, Hainan, China |
| GPS Coordinates: | 18°18'10"N by 109°24'44"E |
| Area Served: | Sanya |
| Operator/Owner: | Civil Aviation Administration of China |
| Airport Type: | Public |
| # of Runways: | 1 |
| View all routes: | Routes from SYX |
| More Information: | SYX Maps & Info |
Facts about St. Mary's Airport (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.
- 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.
- St. Mary's Airport (KSM) has 2 runways.
- 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.
Facts about Sanya Phoenix International Airport (SYX):
- Sanya Phoenix International Airport (SYX) currently has only 1 runway.
- Sanya Phoenix Airport Railway Station of the Hainan Western Ring High-Speed Railway, which is planned to be opened by the end of 2014, will be located just north of the airport.
- The furthest airport from Sanya Phoenix International Airport (SYX) is Chacalluta International Airport (ARI), which is nearly antipodal to Sanya Phoenix International Airport (meaning Sanya Phoenix International Airport is almost on the exact opposite side of the Earth from Chacalluta International Airport), and is located 12,420 miles (19,988 kilometers) away in Arica, Chile.
- In addition to being known as "Sanya Phoenix International Airport", other names for SYX include "三亚凤凰国际机场" and "Sānyà Fènghuáng Guójì Jīcháng".
- The closest airport to Sanya Phoenix International Airport (SYX) is Haikou Meilan International Airport (HAK), which is located 132 miles (212 kilometers) NNE of SYX.
- In 2012, Sanya Airport handled 11,343,387 passengers, making it the 19th busiest airport in China in terms of passengers, and 24th busiest in terms of movements with 81,456 in 2012.
| 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 | 131.83 miles (212.16 km) NNE | Haikou Meilan International Airport (HAK) | Haikou, Hainan, China | |
| 2 | 173.10 miles (278.58 km) SW | Phu Bai International Airport (HUI) | Huế, Thừa Thiên–Huế, Vietnam | |
| 3 | 175.42 miles (282.30 km) SSW | Đà Nẵng International Airport (DAD) | Da Nang, Vietnam | |
| 4 | 205.53 miles (330.77 km) SSW | Chu Lai Airport (VCL) | Chu Lai, Quang Nam, Vietnam | |
| 5 | 210.55 miles (338.85 km) NNE | Zhanjiang Airport (ZHA) | Zhanjiang, Guangdong, China | |
| 6 | 223.76 miles (360.10 km) N | Beihai Fucheng Airport (BHY) | Beihai, Guangxi, China | |
| 7 | 246.65 miles (396.94 km) NW | Cat Bi International Airport (HPH) | Haiphong, Vietnam | |
| 8 | 246.94 miles (397.41 km) W | Vinh Airport (VII) | Vinh, Nghe An, Vietnam | |
| 9 | 280.21 miles (450.95 km) WNW | Tho Xuan Airport (THD) | Thanh Hoa, Vietnam | |
| 10 | 301.41 miles (485.08 km) S | Phu Cat Airport (UIH) | Qui Nhơn, Binh Dinh, Vietnam | |
| 11 | 308.10 miles (495.84 km) NNW | Nanning Wuxu International Airport (NNG) | Nanning, Guangxi, China | |
| 12 | 309.17 miles (497.56 km) NW | Nội Bài International Airport (HAN) | Hanoi, Vietnam | |
| 13 | 320.02 miles (515.02 km) W | Nakhon Phanom Airport (KOP) | Nakhon Phanom, Thailand | |
| 14 | 329.57 miles (530.40 km) WSW | Savannakhet Airport (ZVK) | Savannakhet, Laos | |
| 15 | 354.60 miles (570.67 km) SSW | Ratanakiri Airport (RBE) | Ratanakiri, Cambodia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,420.16 miles (19,988.26 km) W | Chacalluta International Airport (ARI) | Arica, Chile | |
| 2 | 12,420.16 miles (19,988.26 km) W | Chacalluta International Airport (ACM) | Arica, Amazonas, Colombia | |
| 3 | 12,371.74 miles (19,910.33 km) SE | Ilo Airport (ILQ) | Ilo, Moquegua Region, Peru | |
| 4 | 12,286.19 miles (19,772.65 km) SSE | Rodríguez Ballón International Airport (AQP) | Arequipa, Peru | |
| 5 | 12,280.30 miles (19,763.18 km) S | Diego Aracena International Airport (IQQ) | Iquique, Chile | |
| 6 | 12,238.80 miles (19,696.40 km) S | Inca Manco Cápac International Airport (JUL) | Juliaca, Peru | |
| 7 | 12,236.23 miles (19,692.25 km) SW | El Alto International Airport (LPB) | La Paz, Bolivia | |
| 8 | 12,154.77 miles (19,561.16 km) SSW | Apolo Airport (APB) | Apolo, La Paz, Bolivia | |
| 9 | 12,151.15 miles (19,555.33 km) WSW | Uyuni Joya Andina Airport (UYU) | Uyuni, Potosí, Bolivia | |
| 10 | 12,140.41 miles (19,538.05 km) W | Jorge Wilstermann International Airport (CBB) | Cochabamba, Bolivia | |
| 11 | 12,132.07 miles (19,524.63 km) S | Carolina Airport (CLN) | Carolina, Maranhão, Brazil | |
| 12 | 12,127.65 miles (19,517.52 km) SSW | El Loa Airport (CJC) | Calama, Antofagasta Region, Chile | |
| 13 | 12,099.71 miles (19,472.54 km) SW | Rurrenabaque Airport (RBQ) | Rurrenabaque, Bolivia | |
| 14 | 12,095.32 miles (19,465.48 km) SSE | Alejandro Velasco Astete International Airport (CUZ) | Cusco, Cusco Region, Peru | |
| 15 | 12,089.06 miles (19,455.40 km) SW | Capitán Germán Quiroga Guardia Airport (SRJ) | San Borja, Bolivia | |