Nonstop flight route between Boundji, Republic of the Congo and Alton, Illinois, United States:
Departure Airport:
(1°1'58"S by 15°22'58"E)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from BOE to ALN:
7,089.86 miles (11,410.00 km)
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Jump to:
- About this route
- BOE Airport Information
- ALN Airport Information
- Facts about BOE
- Facts about ALN
- Map of Nearest Airports to BOE
- List of Nearest Airports to BOE
- Map of Furthest Airports from BOE
- List of Furthest Airports from BOE
- 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 Boundji Airport (BOE), Boundji, Republic of the Congo and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 7,090 miles (or 11,410 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 Boundji 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 Boundji 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: | BOE / FCOB |
| Airport Name: | Boundji Airport |
| Location: | Boundji, Republic of the Congo |
| GPS Coordinates: | 1°1'58"S by 15°22'58"E |
| Area Served: | Boundji, Republic of the Congo |
| Elevation: | 1247 feet (380 meters) |
| View all routes: | Routes from BOE |
| More Information: | BOE 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 Boundji Airport (BOE):
- The closest airport to Boundji Airport (BOE) is Oyo Ollombo Airport (OLL), which is located 39 miles (63 kilometers) ESE of BOE.
- The furthest airport from Boundji Airport (BOE) is Cassidy International Airport (CXI), which is located 11,931 miles (19,200 kilometers) away in Christmas Island, Kiribati.
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.
- 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.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 38.87 miles (62.55 km) ESE | Oyo Ollombo Airport (OLL) | Oyo, Republic of the Congo, Republic of the Congo |     |
| 2 | 41.59 miles (66.93 km) WNW | Ewo Airport (EWO) | Ewo, Republic of Congo | |
| 3 | 52.30 miles (84.17 km) NE | Owando Airport (FTX) | Owando, Republic of the Congo | |
| 4 | 66.62 miles (107.21 km) SSE | Gamboma Airport (GMM) | Gamboma, Republic of the Congo | |
| 5 | 71.55 miles (115.14 km) N | Makoua Airport (MKJ) | Makoua, Republic of the Congo | |
| 6 | 88.07 miles (141.74 km) NW | Kelle Airport (KEE) | Kelle, Republic of the Congo | |
| 7 | 102.48 miles (164.93 km) W | Akieni Airport (AKE) | Akieni, Gabon | |
| 8 | 112.48 miles (181.02 km) SSW | Djambala Airport (DJM) | Djambala, Republic of Congo | |
| 9 | 114.15 miles (183.71 km) SSW | Lague Airport (LCO) | Lague, Republic of Congo | |
| 10 | 141.07 miles (227.04 km) WSW | M'Vengue El Hadj Omar Bongo Ondimba International Airport (MVB) | Franceville / Mvengue, Gabon | |
| 11 | 150.10 miles (241.57 km) WSW | Moanda Airport (MFF) | Moanda, Gabon | |
| 12 | 165.69 miles (266.65 km) SW | Zanaga Airport (ANJ) | Zanaga, Republic of the Congo | |
| 13 | 197.00 miles (317.04 km) SE | Nioki Airport (NIO) | Nioki, Democratic Republic of the Congo | |
| 14 | 203.50 miles (327.49 km) W | Koulamoutou Airport (Koula Moutou Airport) (KOU) | Koulamoutou, Gabon | |
| 15 | 205.07 miles (330.03 km) WNW | Makokou Airport (MKU) | Makokou, Gabon | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,930.56 miles (19,200.32 km) W | Cassidy International Airport (CXI) | Christmas Island, Kiribati | |
| 2 | 11,881.17 miles (19,120.83 km) ESE | Canton Island Airport (CIS) | Canton Island, Kiribati | |
| 3 | 11,609.92 miles (18,684.30 km) SSW | Manihiki Island Airport (MHX) | Manihiki Island, Cook Islands | |
| 4 | 11,333.05 miles (18,238.73 km) SSE | Fitiuta Airport (FTI) | Fiti‘uta, American Samoa, United States | |
| 5 | 11,330.39 miles (18,234.45 km) SSE | Tau Airport (TAV) | Tau, American Samoa | |
| 6 | 11,329.98 miles (18,233.79 km) SSE | Ofu Airport (OFU) | Ofu, American Samoa | |
| 7 | 11,301.91 miles (18,188.61 km) NNE | Johnston Atoll Airport (JON) | Johnston Atoll, U.S. Minor Outlying Islands | |
| 8 | 11,299.88 miles (18,185.35 km) SSE | Pago Pago International Airport (PPG) | Pago Pago, American Samoa | |
| 9 | 11,298.77 miles (18,183.57 km) SSE | Fagali'i Airport (FGI) | Apia, Samoa | |
| 10 | 11,292.24 miles (18,173.05 km) SSE | Asau Airport (AAU) | Asau, Samoa | |
| 11 | 11,291.98 miles (18,172.63 km) SSE | Faleolo International Airport (APW) | Apia, Upolu Island, Samoa | |
| 12 | 11,289.66 miles (18,168.91 km) SSE | Maota (Salelologa) Airport (MXS) | Maota, Samoa | |
| 13 | 11,169.52 miles (17,975.55 km) SE | Wallis Island (WLS) | Wallis and Futuna Islands | |
| 14 | 11,141.19 miles (17,929.96 km) ESE | Funafuti International Airport (FUN) | Funafuti, Tuvalu | |
| 15 | 11,128.79 miles (17,910.01 km) E | Arorae Island Airport (AIS) | Arorae Island, Kiribati | |
| 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 | |