Nonstop flight route between Houston, Texas, United States and Alton, Illinois, United States:
Departure Airport:
(29°49'5"N by 95°40'20"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from IWS to ALN:
703.81 miles (1,132.67 km)
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Jump to:
- About this route
- IWS Airport Information
- ALN Airport Information
- Facts about IWS
- Facts about ALN
- Map of Nearest Airports to IWS
- List of Nearest Airports to IWS
- Map of Furthest Airports from IWS
- List of Furthest Airports from IWS
- 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 West Houston Airport (IWS), Houston, Texas, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 704 miles (or 1,133 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 relatively short distance between West Houston Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | IWS / KIWS |
| Airport Name: | West Houston Airport |
| Location: | Houston, Texas, United States |
| GPS Coordinates: | 29°49'5"N by 95°40'20"W |
| Area Served: | Houston, Texas |
| Operator/Owner: | West Houston Airport Corp. |
| Airport Type: | Public use |
| Elevation: | 111 feet (34 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from IWS |
| More Information: | IWS 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 West Houston Airport (IWS):
- The new sign at the entrance
- Because of West Houston Airport's relatively low elevation of 111 feet, planes can take off or land at West Houston 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.
- West Houston Airport owned and operated by Gary Gandy covers an area of 200 acres at an elevation of 111 feet above mean sea level.
- The furthest airport from West Houston Airport (IWS) is Cocos (Keeling) Island Airport (CCK), which is located 10,979 miles (17,668 kilometers) away in Cocos Islands, Australia.
- West Houston Airport (IWS) currently has only 1 runway.
- The closest airport to West Houston Airport (IWS) is Andrau Airpark (AAP), which is located only 9 miles (14 kilometers) SE of IWS.
Facts about St. Louis Regional Airport (ALN):
- 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 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 8.83 miles (14.21 km) SE | Andrau Airpark (AAP) | Houston, Texas, United States |     |
| 2 | 13.58 miles (21.86 km) S | Sugar Land Regional Airport (SGR) | Sugar Land, Texas (near Houston), United States | |
| 3 | 18.29 miles (29.44 km) NNE | David Wayne Hooks Memorial Airport (DWH) | Houston, Texas, United States | |
| 4 | 22.91 miles (36.88 km) ENE | George Bush Intercontinental Airport (IAH) | Houston, Texas, United States | |
| 5 | 26.46 miles (42.59 km) ESE | William P. Hobby Airport (HOU) | Houston, Texas, United States | |
| 6 | 34.10 miles (54.88 km) ESE | Ellington Field Joint Reserve BaseEllington Air Force BaseEllington Field (EFD) | Houston, Texas, United States | |
| 7 | 40.00 miles (64.38 km) NNE | Lone Star Executive Airport (CXO) | Houston, Texas, United States | |
| 8 | 43.21 miles (69.54 km) E | Baytown Airport (HPY) | Baytown, Texas, United States | |
| 9 | 48.56 miles (78.15 km) SW | Wharton Regional Airport (WHT) | Wharton, Texas, United States | |
| 10 | 50.64 miles (81.50 km) SSE | Texas Gulf Coast Regional Airport (LJN) | Angleton / Lake Jackson, Texas, United States | |
| 11 | 59.50 miles (95.76 km) S | Bay City Municipal Airport (BBC) | Bay City, Texas, United States | |
| 12 | 61.99 miles (99.76 km) SE | Scholes International Airport at Galveston (GLS) | Galveston, Texas, United States | |
| 13 | 64.36 miles (103.58 km) N | Bruce Brothers Huntsville Regional Airport (HTV) | Huntsville, Texas, United States | |
| 14 | 67.36 miles (108.40 km) NW | Easterwood Airport (CLL) | College Station, Texas, United States | |
| 15 | 73.41 miles (118.14 km) NNW | Coulter Field (CFD) | Bryan, Texas, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,978.58 miles (17,668.27 km) SW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 2 | 10,952.82 miles (17,626.82 km) ESE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 3 | 10,653.72 miles (17,145.45 km) ESE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 4 | 10,634.50 miles (17,114.52 km) W | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 5 | 10,622.80 miles (17,095.70 km) W | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 6 | 10,615.95 miles (17,084.67 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 7 | 10,610.33 miles (17,075.63 km) W | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 8 | 10,609.04 miles (17,073.55 km) W | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 9 | 10,604.64 miles (17,066.48 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 10 | 10,598.75 miles (17,056.99 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 11 | 10,586.79 miles (17,037.74 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 12 | 10,582.60 miles (17,030.99 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 13 | 10,567.23 miles (17,006.26 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 14 | 10,561.50 miles (16,997.04 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 15 | 10,558.05 miles (16,991.49 km) W | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 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 | |