Nonstop flight route between Alton, Illinois, United States and Soalala, Madagascar:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(16°4'58"S by 45°22'1"E)
Distance from ALN to DWB:
9,324.55 miles (15,006.37 km)
Share this route:
Jump to:
- About this route
- ALN Airport Information
- DWB Airport Information
- Facts about ALN
- Facts about DWB
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to DWB
- List of Nearest Airports to DWB
- Map of Furthest Airports from DWB
- List of Furthest Airports from DWB
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Soalala Airport (DWB), Soalala, Madagascar would travel a Great Circle distance of 9,325 miles (or 15,006 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. Louis Regional Airport and Soalala 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. Louis Regional Airport and Soalala Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | DWB / FMNO |
| Airport Name: | Soalala Airport |
| Location: | Soalala, Madagascar |
| GPS Coordinates: | 16°4'58"S by 45°22'1"E |
| Elevation: | 0 feet (0 meters) |
| View all routes: | Routes from DWB |
| More Information: | DWB Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- 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.
- The 2,250 acres airfield sits at 544 ft MSL.
- 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.
Facts about Soalala Airport (DWB):
- Because of Soalala Airport's relatively low elevation of 0 feet, planes can take off or land at Soalala 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 Soalala Airport (DWB) is Hilo International Airport (ITO), which is located 11,072 miles (17,819 kilometers) away in Hilo, Hawaii, United States.
- The closest airport to Soalala Airport (DWB) is Amborovy Airport (MJN), which is located 71 miles (115 kilometers) ENE of DWB.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 71.47 miles (115.03 km) ENE | Amborovy Airport (MJN) | Mahajanga, Madagascar | |
| 2 | 74.24 miles (119.47 km) SW | Besalampy Airport (BPY) | Besalampy, Madagascar | |
| 3 | 112.08 miles (180.38 km) S | Ambatomainty Airport (AMY) | Ambatomainty, Madagascar | |
| 4 | 133.29 miles (214.52 km) SW | Tambohorano Airport (WTA) | Tambohorano, Madagascar | |
| 5 | 153.50 miles (247.03 km) ENE | Port Bergé Airport (WPB) | Port Bergé, Madagascar | |
| 6 | 156.08 miles (251.18 km) ESE | Tsaratanana Airport (TTS) | Tsaratanana, Madagascar. | |
| 7 | 162.03 miles (260.76 km) SSW | Maintirano Airport (MXT) | Maintirano, Madagascar | |
| 8 | 187.81 miles (302.25 km) S | Ankavandra Airport (JVA) | Ankavandra, Madagascar | |
| 9 | 188.63 miles (303.57 km) ENE | Analalava Airport (HVA) | Analalava, Madagascar | |
| 10 | 190.63 miles (306.78 km) SSE | Tsiroanomandidy Airport (WTS) | Tsiroanomandidy, Madagascar | |
| 11 | 226.58 miles (364.64 km) N | Dzaoudzi Pamandzi International Airport (DZA) | Dzaoudzi, Mayotte | |
| 12 | 230.99 miles (371.74 km) E | Mandritsara Airport (WMA) | Mandritsara, Madagascar | |
| 13 | 233.53 miles (375.83 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 240.49 miles (387.03 km) S | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 254.83 miles (410.11 km) SSW | Belo sur Tsiribihina Airport (BMD) | Belo sur Tsiribihina, Madagascar | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,072.16 miles (17,818.87 km) ENE | Hilo International Airport (ITO) | Hilo, Hawaii, United States | |
| 2 | 11,029.70 miles (17,750.54 km) ENE | Waimea-Kohala Airport (MUE) | Kamuela, Hawaii, United States | |
| 3 | 11,027.99 miles (17,747.79 km) ENE | Pōhakuloa Training Area (BSF) | Camp Pohakuloa, Hawaii, United States | |
| 4 | 11,014.85 miles (17,726.63 km) ENE | Upolu Airport (UPP) | Hawi, Hawaii, United States | |
| 5 | 11,007.63 miles (17,715.03 km) ENE | Kona International Airport at Keāhole (KOA) | Kailua / Kona, Hawaii, United States | |
| 6 | 10,999.32 miles (17,701.65 km) ENE | Hana Airport (HNM) | Hana, Hawaii, United States | |
| 7 | 10,971.65 miles (17,657.11 km) ENE | Kahului Airport (OGG) | Kahului, Hawaii, United States | |
| 8 | 10,955.48 miles (17,631.09 km) ENE | Kapalua Airport (JHM) | Lahaina, Hawaii, United States | |
| 9 | 10,939.68 miles (17,605.66 km) ENE | Lanai Airport (LNY) | Lanai City, Hawaii, United States | |
| 10 | 10,933.51 miles (17,595.73 km) ENE | Kalaupapa Airport (LUP) | Kalaupapa, Hawaii, United States | |
| 11 | 10,926.39 miles (17,584.28 km) ENE | Molokai Airport (MKK) | Kaunakakai, Hawaii, United States | |
| 12 | 10,894.44 miles (17,532.86 km) NNW | Santa Cruz Island Airport (SZN) | Santa Barbara, California, United States | |
| 13 | 10,884.21 miles (17,516.39 km) NW | Guerrero Negro Airport (GUB) | Guerrero Negro, Baja California Sur, Mexico | |
| 14 | 10,881.73 miles (17,512.41 km) NNW | Lompoc Airport (LPC) | Lompoc, California, United States | |
| 15 | 10,881.58 miles (17,512.16 km) NNW | Vandenberg Air Force Base (VBG) | Lompoc, California, United States | |