Nonstop flight route between Île Sainte-Marie, Madagascar and Alton, Illinois, United States:
Departure Airport:
(17°5'38"S by 49°48'56"E)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from SMS to ALN:
9,595.48 miles (15,442.39 km)
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Jump to:
- About this route
- SMS Airport Information
- ALN Airport Information
- Facts about SMS
- Facts about ALN
- Map of Nearest Airports to SMS
- List of Nearest Airports to SMS
- Map of Furthest Airports from SMS
- List of Furthest Airports from SMS
- 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 Sainte Marie Airport (SMS), Île Sainte-Marie, Madagascar and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 9,595 miles (or 15,442 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 Sainte Marie 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 Sainte Marie 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: | SMS / FMMS |
| Airport Name: | Sainte Marie Airport |
| Location: | Île Sainte-Marie, Madagascar |
| GPS Coordinates: | 17°5'38"S by 49°48'56"E |
| Area Served: | Sainte Marie, Analanjirofo, Madagascar |
| Airport Type: | Public |
| Elevation: | 7 feet (2 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SMS |
| More Information: | SMS 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 Sainte Marie Airport (SMS):
- The closest airport to Sainte Marie Airport (SMS) is Toamasino Airport (TMM), which is located 76 miles (122 kilometers) SSW of SMS.
- The furthest airport from Sainte Marie Airport (SMS) is Guerrero Negro Airport (GUB), which is located 11,161 miles (17,962 kilometers) away in Guerrero Negro, Baja California Sur, Mexico.
- Sainte Marie Airport (SMS) currently has only 1 runway.
- Because of Sainte Marie Airport's relatively low elevation of 7 feet, planes can take off or land at Sainte Marie 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 St. Louis Regional Airport (ALN):
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- 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.
- 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.
- 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 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 | 75.51 miles (121.52 km) SSW | Toamasino Airport (TMM) | Toamasina, Madagascar |     |
| 2 | 109.66 miles (176.48 km) NW | Mandritsara Airport (WMA) | Mandritsara, Madagascar | |
| 3 | 147.27 miles (237.02 km) W | Tsaratanana Airport (TTS) | Tsaratanana, Madagascar. | |
| 4 | 148.54 miles (239.05 km) NNE | Antsirabato Airport (ANM) | Antalaha, Madagascar | |
| 5 | 179.31 miles (288.56 km) NW | Port Bergé Airport (WPB) | Port Bergé, Madagascar | |
| 6 | 193.49 miles (311.40 km) SW | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 7 | 218.14 miles (351.06 km) NW | Analalava Airport (HVA) | Analalava, Madagascar | |
| 8 | 249.90 miles (402.17 km) WNW | Amborovy Airport (MJN) | Mahajanga, Madagascar | |
| 9 | 255.83 miles (411.71 km) NNW | Ambanja Airport (IVA) | Ambanja, Madagascar | |
| 10 | 272.99 miles (439.33 km) WSW | Tsiroanomandidy Airport (WTS) | Tsiroanomandidy, Madagascar | |
| 11 | 275.44 miles (443.27 km) NNW | Ambilobe Airport (AMB) | Ambilobe, Madagascar | |
| 12 | 279.38 miles (449.62 km) W | Ambatomainty Airport (AMY) | Ambatomainty, Madagascar | |
| 13 | 299.34 miles (481.74 km) SSW | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 14 | 302.75 miles (487.22 km) WNW | Soalala Airport (DWB) | Soalala, Madagascar | |
| 15 | 320.40 miles (515.63 km) WSW | Ankavandra Airport (JVA) | Ankavandra, Madagascar | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,160.95 miles (17,961.77 km) NW | Guerrero Negro Airport (GUB) | Guerrero Negro, Baja California Sur, Mexico | |
| 2 | 11,121.21 miles (17,897.80 km) WNW | Ciudad Constitución Airport (CUA) | Ciudad Constitución, Baja California Sur, Mexico | |
| 3 | 11,112.23 miles (17,883.35 km) NW | Ensenada Airport (ESE) | Ensenada, Baja California, Mexico | |
| 4 | 11,103.17 miles (17,868.77 km) NNW | Santa Cruz Island Airport (SZN) | Santa Barbara, California, United States | |
| 5 | 11,101.15 miles (17,865.52 km) NW | Bahía de los Ángeles Airport (BHL) | Bahía de los Ángeles, Baja California, México | |
| 6 | 11,093.48 miles (17,853.19 km) NNW | Catalina AirportBuffalo Springs Airport (CIB) | Avalon, California, United States | |
| 7 | 11,092.50 miles (17,851.61 km) NW | Naval Outlying Landing Field Imperial Beach (NRS) | Imperial Beach, California, United States | |
| 8 | 11,089.23 miles (17,846.34 km) NW | NAS North Island (NZY) | San Diego, California, United States | |
| 9 | 11,088.31 miles (17,844.86 km) NW | Tijuana International Airport (TIJ) | Tijuana, Baja California, Mexico | |
| 10 | 11,087.06 miles (17,842.84 km) NW | Brown Field Municipal Airport (SDM) | San Diego, California, United States | |
| 11 | 11,086.45 miles (17,841.87 km) NW | San Diego International Airport (SAN) | San Diego, California, United States | |
| 12 | 11,082.62 miles (17,835.71 km) NNW | Lompoc Airport (LPC) | Lompoc, California, United States | |
| 13 | 11,081.44 miles (17,833.81 km) WNW | Loreto International Airport (LTO) | Loreto, Baja California Sur, Mexico | |
| 14 | 11,081.30 miles (17,833.57 km) NNW | Vandenberg Air Force Base (VBG) | Lompoc, California, United States | |
| 15 | 11,080.22 miles (17,831.85 km) NW | Montgomery Field (MYF) | San Diego, California, United States | |
| 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 | |