Nonstop flight route between Okayama, Japan and Alton, Illinois, United States:
Departure Airport:
(34°45'24"N by 133°51'19"E)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from OKJ to ALN:
6,626.24 miles (10,663.87 km)
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Jump to:
- About this route
- OKJ Airport Information
- ALN Airport Information
- Facts about OKJ
- Facts about ALN
- Map of Nearest Airports to OKJ
- List of Nearest Airports to OKJ
- Map of Furthest Airports from OKJ
- List of Furthest Airports from OKJ
- 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 Okayama Airport (OKJ), Okayama, Japan and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 6,626 miles (or 10,664 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 Okayama 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 Okayama 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: | OKJ / RJOB |
| Airport Names: |
|
| Location: | Okayama, Japan |
| GPS Coordinates: | 34°45'24"N by 133°51'19"E |
| Area Served: | Okayama |
| Airport Type: | Public |
| Elevation: | 785 feet (239 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from OKJ |
| More Information: | OKJ 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 Okayama Airport (OKJ):
- Okayama Airport (OKJ) currently has only 1 runway.
- In addition to being known as "Okayama Airport", other names for OKJ include "岡山空港" and "Okayama Kūkō".
- Because of Okayama Airport's relatively low elevation of 785 feet, planes can take off or land at Okayama 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 Okayama Airport (OKJ) is Takamatsu Airport (TAK), which is located 39 miles (62 kilometers) SSE of OKJ.
- The furthest airport from Okayama Airport (OKJ) is Rio Grande Regional Airport (RIG), which is nearly antipodal to Okayama Airport (meaning Okayama Airport is almost on the exact opposite side of the Earth from Rio Grande Regional Airport), and is located 12,044 miles (19,382 kilometers) away in Rio Grande, Brazil.
Facts about St. Louis Regional Airport (ALN):
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 38.60 miles (62.12 km) SSE | Takamatsu Airport (TAK) | Takamatsu, Kagawa, Japan |     |
| 2 | 57.66 miles (92.79 km) WSW | Hiroshima Airport (HIJ) | Hiroshima, Honshū, Japan | |
| 3 | 61.65 miles (99.22 km) NW | Miho-Yonago Airport (YGJ) | Yonago, Tottori, Japan | |
| 4 | 70.97 miles (114.22 km) NW | Izumo Airport (IZO) | Izumo, Shimane, Japan | |
| 5 | 78.22 miles (125.88 km) E | Kobe Airport (UKB) | Kobe, Hyōgo Prefecture, Japan | |
| 6 | 81.46 miles (131.09 km) ESE | Kansai International Airport (KIX) | Osaka, Japan | |
| 7 | 84.33 miles (135.72 km) S | Kōchi Airport (KCZ) | Kōchi, Japan | |
| 8 | 89.91 miles (144.70 km) E | Osaka International Airport (ITM) | Itami (near Osaka), Japan | |
| 9 | 89.91 miles (144.70 km) E | Osaka International Airport (OSA) | Osaka, Japan | |
| 10 | 92.07 miles (148.18 km) SW | Matsuyama Airport (MYJ) | Matsuyama, Ehime, Japan | |
| 11 | 114.70 miles (184.59 km) SE | Nanki-Shirahama Airport (SHM) | Shirahama, Japan | |
| 12 | 117.41 miles (188.95 km) W | Iwami Airport (IWJ) | Masuda, Shimane, Japan, Japan | |
| 13 | 149.89 miles (241.23 km) SW | Oita Airport (OIT) | Oita, Japan | |
| 14 | 157.70 miles (253.80 km) WSW | Yamaguchi Ube Airport (UBJ) | Ube, Yamaguchi Prefecture, Japan | |
| 15 | 164.13 miles (264.14 km) NE | Fukui Airport (FKJ) | Fukui, Honshu, Japan | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,043.66 miles (19,382.35 km) ESE | Rio Grande Regional Airport (RIG) | Rio Grande, Brazil | |
| 2 | 12,022.25 miles (19,347.88 km) ESE | Pelotas International Airport (PET) | Pelotas, Rio Grande do Sul, Brazil | |
| 3 | 11,996.11 miles (19,305.82 km) SE | Salgado Filho International Airport (POA) | Porto Alegre, Rio Grande do Sul, Brazil | |
| 4 | 11,977.76 miles (19,276.28 km) SSE | Diomício Freitas/Forquilhinha Airport (CCM) | Criciúma, Santa Catarina, Brazil | |
| 5 | 11,954.74 miles (19,239.25 km) E | Treinta y Tres Airport (TYT) | Treinta y Tres, Treinta y Tres, Uruguay | |
| 6 | 11,942.88 miles (19,220.15 km) ESE | Cerro Largo International Airport (MLZ) | Melo, Cerro Largo, Uruguay | |
| 7 | 11,929.20 miles (19,198.14 km) E | Capitán de Corbeta Carlos A. Curbelo International Airport (PDP) | Maldonado/Punta del Este, Maldonado, Uruguay | |
| 8 | 11,926.96 miles (19,194.53 km) SSE | Florianópolis-Hercílio Luz International Airport (FLN) | Florianópolis, Santa Catarina, Brazil | |
| 9 | 11,920.55 miles (19,184.21 km) ESE | Comandante Gustavo Kraemer International Airport (BGX) | Bagé, Rio Grande do Sul, Brazil | |
| 10 | 11,906.48 miles (19,161.58 km) ESE | Cerro Largo International Airport (VCH) | Vichadero, Rivera, Uruguay | |
| 11 | 11,896.65 miles (19,145.75 km) SSE | Antônio Correia Pinto de Macedo Airport (LAJ) | Lages, Santa Catarina, Brazil | |
| 12 | 11,876.08 miles (19,112.66 km) E | Carrasco/General Cesáreo L. Berisso International Airport (MVD) | Montevideo, Montevideo, Uruguay | |
| 13 | 11,874.85 miles (19,110.68 km) SE | Santa Maria Airport (RIA) | Santa Maria, Rio Grande do Sul, Brazil | |
| 14 | 11,872.58 miles (19,107.01 km) SSE | Navegantes Airport (NVT) | Navegantes, Santa Catarina, Brazil | |
| 15 | 11,858.18 miles (19,083.85 km) SE | Lauro Kurtz Airport (PFB) | Passo Fundo, Rio Grande do Sul, Brazil | |
| 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 | |