Nonstop flight route between St. Mary's, Alaska, United States and Hateruma, Okinawa, Japan:
Departure Airport:
(62°3'38"N by 163°18'6"W)
Arrival Airport:
(24°3'29"N by 123°48'14"E)
Distance from KSM to HTR:
4,209.34 miles (6,774.25 km)
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Jump to:
- About this route
- KSM Airport Information
- HTR Airport Information
- Facts about KSM
- Facts about HTR
- 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 HTR
- List of Nearest Airports to HTR
- Map of Furthest Airports from HTR
- List of Furthest Airports from HTR
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Hateruma Airport (HTR), Hateruma, Okinawa, Japan would travel a Great Circle distance of 4,209 miles (or 6,774 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 Hateruma 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 Hateruma 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: | HTR / RORH |
| Airport Names: |
|
| Location: | Hateruma, Okinawa, Japan |
| GPS Coordinates: | 24°3'29"N by 123°48'14"E |
| Area Served: | Taketomi, Okinawa, Japan |
| Operator/Owner: | Okinawa Prefecture |
| Airport Type: | Public |
| Elevation: | 43 feet (13 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from HTR |
| More Information: | HTR 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.
- 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.
- 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 Hateruma Airport (HTR):
- In addition to being known as "Hateruma Airport", other names for HTR include "波照間空港" and "Hateruma Kūkō".
- Because of Hateruma Airport's relatively low elevation of 43 feet, planes can take off or land at Hateruma 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 furthest airport from Hateruma Airport (HTR) is Dr. Augusto Roberto Fuster International Airport (PJC), which is nearly antipodal to Hateruma Airport (meaning Hateruma Airport is almost on the exact opposite side of the Earth from Dr. Augusto Roberto Fuster International Airport), and is located 12,336 miles (19,853 kilometers) away in Pedro Juan Caballero, Paraguay.
- Hateruma Airport (HTR) currently has only 1 runway.
- The closest airport to Hateruma Airport (HTR) is Ishigaki Airport (ISG), which is located 31 miles (50 kilometers) NE of HTR.
| 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 | 31.21 miles (50.23 km) NE | Ishigaki Airport (ISG) | Ishigaki, Okinawa Prefecture, Japan | |
| 2 | 59.11 miles (95.13 km) WNW | Yonaguni Airport (OGN) | Yonaguni, Okinawa, Japan | |
| 3 | 99.66 miles (160.38 km) ENE | Shimojishima Airport (SHI) | Shimojishima, Japan | |
| 4 | 106.33 miles (171.11 km) ENE | Miyako Airport (MMY) | Miyakojima, Okinawa, Japan | |
| 5 | 137.96 miles (222.03 km) W | Hualien Airport (HUN) | Hualien, Taiwan, Republic of China | |
| 6 | 157.83 miles (254.00 km) WNW | Taipei International Airport (Taipei Songshan Airport) (TSA) | Taipei City, Taiwan, Republic of China | |
| 7 | 176.44 miles (283.96 km) WSW | Lyudao Airport (Green Island Airport) (GNI) | Lyudao (Green Island), Taiwan | |
| 8 | 176.72 miles (284.40 km) WNW | Taiwan Taoyuan International Airport (TPE) | Taoyuan County (near Taipei), Taiwan, Republic of China | |
| 9 | 193.57 miles (311.51 km) WSW | Taitung Airport (TTT) | Taitung, Taiwan, Republic of China | |
| 10 | 201.18 miles (323.76 km) W | Taichung Airport(Taichung Ching Chuan Kang Airport) (RMQ) | Taichung, Taiwan, Taiwan | |
| 11 | 201.18 miles (323.76 km) W | Taichung Airport(Taichung Ching Chuan Kang Airport) (TXG) | Taichung, Taiwan, Republic of China | |
| 12 | 201.49 miles (324.27 km) SW | Lanyu Airport (KYD) | Orchid Island, Taitung County, Taiwan | |
| 13 | 219.41 miles (353.11 km) W | Chiayi Airport (Shueishang Airport) (CYI) | Chiayi, Taiwan | |
| 14 | 240.13 miles (386.46 km) SW | Hengchun Airport (HCN) | Hengchun, Taiwan | |
| 15 | 240.49 miles (387.03 km) WSW | Tainan Airport (TNN) | Tainan City, Taiwan, Republic of China | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,336.18 miles (19,853.10 km) SSW | Dr. Augusto Roberto Fuster International Airport (PJC) | Pedro Juan Caballero, Paraguay | |
| 2 | 12,327.96 miles (19,839.88 km) SSW | Ponta Porã International Airport (PMG) | Ponta Porã, Mato Grosso do Sul, Brazil | |
| 3 | 12,320.33 miles (19,827.60 km) SE | Silvio Pettirossi International Airport (ASU) | Asunción, Paraguay | |
| 4 | 12,310.11 miles (19,811.15 km) W | Guaíra Municipal Airport (QGA) | Guaíra, Paraná, Brazil | |
| 5 | 12,308.27 miles (19,808.19 km) SW | Guaraní International Airport (AGT) | Ciudad del Este, Paraguay | |
| 6 | 12,307.38 miles (19,806.77 km) SE | Clorinda Airport (CLX) | Clorinda, Formosa, Argentina | |
| 7 | 12,285.60 miles (19,771.70 km) SW | Foz do Iguaçu/Cataratas International Airport (IGU) | Foz do Iguaçu, Paraná, Brazil | |
| 8 | 12,285.17 miles (19,771.01 km) SSW | Francisco de Matos Pereira Airport (DOU) | Dourados, Minas Gerais, Brazil | |
| 9 | 12,278.33 miles (19,760.01 km) SW | Cataratas del Iguazú International Airport (IGR) | Puerto Iguazú, Misiones, Argentina | |
| 10 | 12,255.33 miles (19,723.00 km) WSW | Adalberto Mendes da Silva Airport (CAC) | Cascavel, Paraná, Brazil | |
| 11 | 12,247.80 miles (19,710.88 km) SSW | Eldorado Airport (ELO) | Eldorado, Misiones, Argentina | |
| 12 | 12,241.07 miles (19,700.04 km) SE | Formosa International Airport (FMA) | Formosa, Argentina | |
| 13 | 12,206.46 miles (19,644.35 km) S | Libertador General José de San Martín Airport (PSS) | Posadas, Argentina | |
| 14 | 12,206.46 miles (19,644.35 km) S | Libertador General José de San Martín Airport (JSM) | José de San Martín, Chubut, Argentina | |
| 15 | 12,201.10 miles (19,635.71 km) SSE | Carlos Miguel Jiménez Airport (PIL) | Pilar, Paraguay | |