Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Eau Claire, Wisconsin, United States:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(44°51'56"N by 91°29'3"W)
Distance from CPS to EAU:
440.28 miles (708.57 km)
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Jump to:
- About this route
- CPS Airport Information
- EAU Airport Information
- Facts about CPS
- Facts about EAU
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- Map of Nearest Airports to EAU
- List of Nearest Airports to EAU
- Map of Furthest Airports from EAU
- List of Furthest Airports from EAU
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Chippewa Valley Regional Airport (EAU), Eau Claire, Wisconsin, United States would travel a Great Circle distance of 440 miles (or 709 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 St. Louis Downtown Airport and Chippewa Valley Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | CPS / KCPS |
| Airport Name: | St. Louis Downtown Airport |
| Location: | Cahokia, Illinois (near St. Louis), United States |
| GPS Coordinates: | 38°34'14"N by 90°9'21"W |
| Area Served: | Greater St. Louis |
| Operator/Owner: | Bi-State Development Agency |
| Airport Type: | Public |
| Elevation: | 413 feet (126 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from CPS |
| More Information: | CPS Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | EAU / KEAU |
| Airport Name: | Chippewa Valley Regional Airport |
| Location: | Eau Claire, Wisconsin, United States |
| GPS Coordinates: | 44°51'56"N by 91°29'3"W |
| Area Served: | Eau Claire, Wisconsin |
| Operator/Owner: | Eau Claire County |
| Airport Type: | Public |
| Elevation: | 913 feet (278 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from EAU |
| More Information: | EAU Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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 two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
- The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
- St. Louis Downtown Airport (CPS) has 3 runways.
Facts about Chippewa Valley Regional Airport (EAU):
- The furthest airport from Chippewa Valley Regional Airport (EAU) is Margaret River Airport (MGV), which is located 10,839 miles (17,444 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Chippewa Valley Regional Airport's relatively low elevation of 913 feet, planes can take off or land at Chippewa Valley 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 closest airport to Chippewa Valley Regional Airport (EAU) is Rice Lake Regional Airport (RIE), which is located 41 miles (66 kilometers) NNW of EAU.
- Chippewa Valley Regional Airport (EAU) has 2 runways.
- In 1923, 80 acres of land in Putnam Heights were purchased to build an airport.
- The 2013 Federal sequester will result in the closure of the airport's control tower and will require pilots to rely on the Minneapolis ARTCC and pilot-to-pilot radio communication.
- A new $3.9 million 65 feet control tower was built in 2005.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.47 miles (26.50 km) NW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 17.42 miles (28.04 km) E | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 3 | 22.85 miles (36.78 km) NNE | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 4 | 27.50 miles (44.26 km) WNW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 5 | 45.73 miles (73.59 km) ENE | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 6 | 64.55 miles (103.88 km) E | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 72.26 miles (116.30 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 8 | 73.57 miles (118.39 km) SE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 9 | 83.94 miles (135.09 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 10 | 91.63 miles (147.46 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 11 | 92.63 miles (149.07 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 12 | 98.29 miles (158.19 km) SSE | Cape Girardeau Regional Airport (CGI) | Cape Girardeau, Missouri, United States | |
| 13 | 108.03 miles (173.86 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| 14 | 109.88 miles (176.83 km) NNW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 15 | 111.34 miles (179.18 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,998.38 miles (17,700.14 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,976.37 miles (17,664.71 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,953.82 miles (17,628.43 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,950.15 miles (17,622.51 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,924.13 miles (17,580.63 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,908.52 miles (17,555.52 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,899.45 miles (17,540.92 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.05 miles (17,537.06 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,874.80 miles (17,501.25 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,862.63 miles (17,481.67 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,855.26 miles (17,469.80 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,843.70 miles (17,451.20 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,809.16 miles (17,395.61 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 10,809.10 miles (17,395.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 10,804.00 miles (17,387.31 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 40.80 miles (65.66 km) NNW | Rice Lake Regional Airport (RIE) | Rice Lake, Wisconsin, United States | |
| 2 | 52.09 miles (83.84 km) WNW | Amery Municipal Airport (AHH) | Amery, Wisconsin, United States | |
| 3 | 55.09 miles (88.66 km) WNW | New Richmond Regional Airport (RNH) | New Richmond, Wisconsin, United States | |
| 4 | 55.60 miles (89.47 km) SSW | Winona Municipal Airport (ONA) | Winona, Minnesota, United States | |
| 5 | 60.08 miles (96.68 km) ENE | Taylor County Airport (MDF) | Medford, Wisconsin, United States | |
| 6 | 65.47 miles (105.36 km) ESE | Marshfield Municipal Airport (MFI) | Marshfield, Wisconsin, United States | |
| 7 | 66.33 miles (106.74 km) WNW | L.O. Simenstad Municipal Airport (OEO) | Osceola, Wisconsin, United States | |
| 8 | 69.09 miles (111.19 km) S | La Crosse Regional Airport (LSE) | La Crosse, Wisconsin, United States | |
| 9 | 72.72 miles (117.03 km) SSE | Sparta/Fort McCoy Airport (CMY) | Sparta, Wisconsin, United States | |
| 10 | 74.97 miles (120.66 km) NE | Prentice Airport (PRW) | Prentice, Wisconsin, United States | |
| 11 | 77.27 miles (124.35 km) W | St. Paul Downtown Airport (STP) | St. Paul, Minnesota, United States | |
| 12 | 79.97 miles (128.70 km) WSW | Stanton Airfield (SYN) | Stanton, Minnesota, United States | |
| 13 | 80.13 miles (128.96 km) N | Sawyer County Airport (HYR) | Hayward, Wisconsin, United States | |
| 14 | 83.02 miles (133.61 km) SW | Rochester International Airport (RST) | Rochester, Minnesota, United States | |
| 15 | 85.08 miles (136.92 km) W | Minneapolis–Saint Paul International Airport Wold–Chamberlain Airport (MSP) | Bloomington, Minnesota, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,839.19 miles (17,443.95 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,815.37 miles (17,405.61 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,804.21 miles (17,387.65 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,789.84 miles (17,364.52 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,751.56 miles (17,302.92 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 10,737.70 miles (17,280.61 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 10,726.15 miles (17,262.02 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,715.40 miles (17,244.72 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,710.72 miles (17,237.18 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 10,682.38 miles (17,191.59 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,625.59 miles (17,100.19 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,589.79 miles (17,042.57 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,588.07 miles (17,039.81 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,575.05 miles (17,018.85 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,525.09 miles (16,938.45 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |