Nonstop flight route between Okinawa, Japan and Alton, Illinois, United States:
Departure Airport:
(26°11'44"N by 127°38'44"E)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from OKA to ALN:
7,323.35 miles (11,785.76 km)
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Jump to:
- About this route
- OKA Airport Information
- ALN Airport Information
- Facts about OKA
- Facts about ALN
- Map of Nearest Airports to OKA
- List of Nearest Airports to OKA
- Map of Furthest Airports from OKA
- List of Furthest Airports from OKA
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between Naha Airport (OKA), Okinawa, Japan and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 7,323 miles (or 11,786 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 Naha Airport and St. Louis Regional 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 Naha Airport and St. Louis Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | OKA / ROAH |
| Airport Names: |
|
| Location: | Okinawa, Japan |
| GPS Coordinates: | 26°11'44"N by 127°38'44"E |
| Area Served: | Naha, Okinawa, Japan |
| Operator/Owner: | Ministry of Land, Infrastructure and Transport |
| Airport Type: | Public |
| Elevation: | 11 feet (3 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from OKA |
| More Information: | OKA Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | ALN / KALN |
| Airport Name: | St. Louis Regional Airport |
| Location: | Alton, Illinois, United States |
| GPS Coordinates: | 38°53'25"N by 90°2'45"W |
| Area Served: | Alton, Illinois |
| Operator/Owner: | St. Louis Regional |
| Airport Type: | Public |
| Elevation: | 544 feet (166 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ALN |
| More Information: | ALN Maps & Info |
Facts about Naha Airport (OKA):
- Naha Airport (OKA) currently has only 1 runway.
- The furthest airport from Naha Airport (OKA) is Paulo Abdala Airport (FBE), which is nearly antipodal to Naha Airport (meaning Naha Airport is almost on the exact opposite side of the Earth from Paulo Abdala Airport), and is located 12,392 miles (19,943 kilometers) away in Francisco Beltrao, Paraná, Brazil.
- The closest airport to Naha Airport (OKA) is Kadena Air Base 嘉手納飛行場 Kadena Hikōjō (DNA), which is located only 13 miles (21 kilometers) NE of OKA.
- In addition to being known as "Naha Airport", other names for OKA include "那覇空港" and "Naha Kūkō".
- Oroku Aerodrome, an Imperial Japanese Navy airfield, opened in 1933.
- Because of Naha Airport's relatively low elevation of 11 feet, planes can take off or land at Naha 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 was a popular connecting point between Taipei and Shanghai prior to the opening of direct flights between mainland China and Taiwan.
Facts about St. Louis Regional Airport (ALN):
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- In the spring of 2004 the airport was at the center of a scandal.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- St. Louis Regional Airport (ALN) has 2 runways.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 13.21 miles (21.26 km) NE | Kadena Air Base 嘉手納飛行場 Kadena Hikōjō (DNA) | Okinawa Prefecture, Japan |     |
| 2 | 21.94 miles (35.31 km) W | Kerama Airport (KJP) | Kerama Islands, Okinawa, Japan | |
| 3 | 37.18 miles (59.83 km) NW | Aguni Airport (AGJ) | Aguni, Japan | |
| 4 | 37.42 miles (60.22 km) NNE | Iejima Airport (IEJ) | Iejima, Japan | |
| 5 | 176.14 miles (283.47 km) WSW | Miyako Airport (MMY) | Miyakojima, Okinawa, Japan | |
| 6 | 182.40 miles (293.55 km) WSW | Shimojishima Airport (SHI) | Shimojishima, Japan | |
| 7 | 199.85 miles (321.62 km) NE | Amami Airport (ASJ) | Amami Island, Japan | |
| 8 | 203.01 miles (326.71 km) NE | Kikai Airport (KKX) | Kikaiga Shima, Kikai-Shima Island, Japan | |
| 9 | 225.91 miles (363.57 km) E | Minami-Daito Airport (MMD) | Minami Daito, Okinawa, Japan | |
| 10 | 229.11 miles (368.72 km) E | Kitadaito Airport (KTD) | Kitadaito, Okinawa Prefecture, Japan | |
| 11 | 251.11 miles (404.12 km) WSW | Ishigaki Airport (ISG) | Ishigaki, Okinawa Prefecture, Japan | |
| 12 | 282.06 miles (453.93 km) WSW | Hateruma Airport (HTR) | Hateruma, Okinawa, Japan | |
| 13 | 314.89 miles (506.76 km) WSW | Yonaguni Airport (OGN) | Yonaguni, Okinawa, Japan | |
| 14 | 342.61 miles (551.38 km) NNE | Yakushima Airport (KUM) | Yakushima, Kagoshima Prefecture, Japan | |
| 15 | 387.48 miles (623.59 km) W | Taipei International Airport (Taipei Songshan Airport) (TSA) | Taipei City, Taiwan, Republic of China | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,391.78 miles (19,942.58 km) ESE | Paulo Abdala Airport (FBE) | Francisco Beltrao, Paraná, Brazil | |
| 2 | 12,369.26 miles (19,906.34 km) SSE | Serafin Enoss Bertaso Airport (XAP) | Chapecó, Brazil | |
| 3 | 12,366.23 miles (19,901.48 km) SSW | Olavo Cecco Rigon Airport (CCI) | Concórdia, Amazonas, Brazil | |
| 4 | 12,360.66 miles (19,892.50 km) SW | Tancredo Thomas de Faria Airport (GPB) | Guarapuava, Paraná, Brazil | |
| 5 | 12,357.09 miles (19,886.76 km) W | José Cleto Airport (QVB) | União da Vitória, Paraná, Brazil | |
| 6 | 12,355.03 miles (19,883.45 km) ESE | Hélio Wasum Airport (SQX) | São Miguel do Oeste, Santa Catarina, Brazil | |
| 7 | 12,353.07 miles (19,880.29 km) SW | Santa Terezinha Municipal Airport (JCB) | Joaçaba, Santa Catarina, Brazil | |
| 8 | 12,344.32 miles (19,866.20 km) SW | Ângelo Ponzoni Municipal Airport (VIA) | Videira, Santa Catarina, Brazil | |
| 9 | 12,340.17 miles (19,859.53 km) WSW | Carlos Alberto da Costa Neves Airport (CFC) | Caçador, Santa Catarina, Brazil | |
| 10 | 12,335.52 miles (19,852.05 km) S | Erechim Airport (ERM) | Erechim, Rio Grande do Sul, Brazil | |
| 11 | 12,327.64 miles (19,839.36 km) SE | Adalberto Mendes da Silva Airport (CAC) | Cascavel, Paraná, Brazil | |
| 12 | 12,301.40 miles (19,797.14 km) ESE | Cataratas del Iguazú International Airport (IGR) | Puerto Iguazú, Misiones, Argentina | |
| 13 | 12,298.12 miles (19,791.85 km) ESE | Foz do Iguaçu/Cataratas International Airport (IGU) | Foz do Iguaçu, Paraná, Brazil | |
| 14 | 12,295.19 miles (19,787.14 km) S | Lauro Kurtz Airport (PFB) | Passo Fundo, Rio Grande do Sul, Brazil | |
| 15 | 12,294.94 miles (19,786.74 km) E | Eldorado Airport (ELO) | Eldorado, Misiones, Argentina | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 19.64 miles (31.61 km) WSW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States | |
| 2 | 22.85 miles (36.78 km) SSW | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 3 | 26.41 miles (42.50 km) SSE | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 36.08 miles (58.06 km) E | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 5 | 36.24 miles (58.32 km) WSW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 6 | 60.74 miles (97.76 km) ESE | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 68.78 miles (110.69 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 8 | 75.13 miles (120.92 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 9 | 88.08 miles (141.75 km) SSE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 10 | 90.73 miles (146.02 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 11 | 95.12 miles (153.07 km) NW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 12 | 96.44 miles (155.20 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 13 | 102.97 miles (165.72 km) ENE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 14 | 107.04 miles (172.27 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 15 | 115.57 miles (186.00 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,002.15 miles (17,706.21 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,979.99 miles (17,670.53 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,957.22 miles (17,633.90 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,954.58 miles (17,629.65 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,926.12 miles (17,583.85 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,910.74 miles (17,559.09 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,901.55 miles (17,544.30 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.24 miles (17,537.37 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,880.36 miles (17,510.20 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,861.31 miles (17,479.54 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,859.59 miles (17,476.77 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,841.22 miles (17,447.21 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,808.74 miles (17,394.93 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,807.95 miles (17,393.67 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,799.72 miles (17,380.43 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |