Nonstop flight route between West Chicago, Illinois, United States and Alton, Illinois, United States:
Departure Airport:
(41°54'24"N by 88°14'53"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from DPA to ALN:
228.88 miles (368.34 km)
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Jump to:
- About this route
- DPA Airport Information
- ALN Airport Information
- Facts about DPA
- Facts about ALN
- Map of Nearest Airports to DPA
- List of Nearest Airports to DPA
- Map of Furthest Airports from DPA
- List of Furthest Airports from DPA
- 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 DuPage Airport (DPA), West Chicago, Illinois, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 229 miles (or 368 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 DuPage 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: | DPA / KDPA |
| Airport Name: | DuPage Airport |
| Location: | West Chicago, Illinois, United States |
| GPS Coordinates: | 41°54'24"N by 88°14'53"W |
| Airport Type: | Public |
| Elevation: | 759 feet (231 meters) |
| # of Runways: | 4 |
| View all routes: | Routes from DPA |
| More Information: | DPA 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 DuPage Airport (DPA):
- During the summer of 2012, runway 2R/20L was extended 1,343 feet to a total length of 6,443 feet.
- DuPage Airport (DPA) has 4 runways.
- Because of DuPage Airport's relatively low elevation of 759 feet, planes can take off or land at DuPage 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.
- DuPage Airport is a general aviation airport located 29 miles west of downtown Chicago in West Chicago, DuPage County, Illinois.
- DuPage Airport is located on what used to be sheep-grazing land, but in 1927, two Chicago entrepreneurs purchased the land and began barnstorming, using the field as a grass strip.
- In 1946, with the war over, the Navy sold the airport to DuPage County for $1.
- The closest airport to DuPage Airport (DPA) is Chicago/Aurora Municipal Airport (AUZ), which is located only 15 miles (24 kilometers) SW of DPA.
- However, planners learned a lesson from the plight of the beleaguered, land-locked Midway Airport.
- The furthest airport from DuPage Airport (DPA) is Margaret River Airport (MGV), which is located 11,056 miles (17,792 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Louis Regional Airport (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.
- In the spring of 2004 the airport was at the center of a scandal.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 14.96 miles (24.08 km) SW | Chicago/Aurora Municipal Airport (AUZ) | Aurora, Illinois, United States |     |
| 2 | 18.34 miles (29.52 km) ENE | Chicago O'Hare International Airport (ORD) | Chicago, Illinois, United States | |
| 3 | 22.15 miles (35.64 km) SSE | Lewis University Airport (LOT) | Chicago / Romeoville, Illinois, United States | |
| 4 | 22.84 miles (36.76 km) NE | Chicago Executive Airport (PWK) | Chicago/Prospect Heights/Wheeling, Illinois, United States | |
| 5 | 26.85 miles (43.21 km) ESE | Chicago Midway International Airport (MDW) | Chicago, Illinois, United States | |
| 6 | 27.15 miles (43.69 km) S | Joliet Regional Airport (JOT) | Joliet, Illinois, United States | |
| 7 | 40.59 miles (65.32 km) NNE | Waukegan National Airport (UGN) | Chicago / Waukegan, Illinois, United States | |
| 8 | 47.51 miles (76.46 km) ESE | Gary/Chicago International Airport (GYY) | Gary, Indiana (near Chicago), United States | |
| 9 | 47.89 miles (77.08 km) WNW | Chicago Rockford International Airport (RFD) | Rockford, Illinois, United States | |
| 10 | 50.32 miles (80.99 km) NNE | Kenosha Regional Airport (ENW) | Kenosha, Wisconsin, United States | |
| 11 | 60.44 miles (97.28 km) SW | Illinois Valley Regional Airport (VYS) | Peru, Illinois, United States | |
| 12 | 61.36 miles (98.76 km) SSE | Greater Kankakee Airport (IKK) | Kankakee, Illinois, United States | |
| 13 | 62.99 miles (101.37 km) NNE | John H. Batten Airport (RAC) | Racine, Wisconsin, United States | |
| 14 | 63.83 miles (102.73 km) NW | Southern Wisconsin Regional Airport (JVL) | Janesville, Wisconsin, United States | |
| 15 | 71.28 miles (114.72 km) ESE | Porter County Regional Airport (VPZ) | Valparaiso, Indiana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,055.69 miles (17,792.37 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,032.32 miles (17,754.75 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,015.45 miles (17,727.60 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,007.65 miles (17,715.06 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,962.95 miles (17,643.11 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,953.42 miles (17,627.77 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 10,949.94 miles (17,622.17 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,939.68 miles (17,605.67 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,920.63 miles (17,575.01 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 10,916.35 miles (17,568.11 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,865.76 miles (17,486.71 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,834.29 miles (17,436.06 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,823.41 miles (17,418.55 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,814.14 miles (17,403.63 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,775.27 miles (17,341.08 km) SW | Shark Bay Airport (MJK) | Monkey Mia, 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 | |