Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Seymour, Indiana, United States:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(38°55'28"N by 85°54'29"W)
Distance from CPS to SER:
230.18 miles (370.44 km)
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Jump to:
- About this route
- CPS Airport Information
- SER Airport Information
- Facts about CPS
- Facts about SER
- 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 SER
- List of Nearest Airports to SER
- Map of Furthest Airports from SER
- List of Furthest Airports from SER
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Freeman Municipal Airport (SER), Seymour, Indiana, United States would travel a Great Circle distance of 230 miles (or 370 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 Freeman Municipal 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: | SER / KSER |
| Airport Name: | Freeman Municipal Airport |
| Location: | Seymour, Indiana, United States |
| GPS Coordinates: | 38°55'28"N by 85°54'29"W |
| Area Served: | Seymour, Indiana |
| Operator/Owner: | Seymour Airport Authority |
| Airport Type: | Public |
| Elevation: | 583 feet (178 meters) |
| # of Runways: | 4 |
| View all routes: | Routes from SER |
| More Information: | SER Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
Facts about Freeman Municipal Airport (SER):
- The furthest airport from Freeman Municipal Airport (SER) is Margaret River Airport (MGV), which is located 11,222 miles (18,060 kilometers) away in Margaret River, Western Australia, Australia.
- Established by the United States Army Air force in 1942.
- After the end of World War II, Freeman AAF became a storage depot of many captured German and Italian aircraft.
- Freeman Municipal Airport (SER) has 4 runways.
- The closest airport to Freeman Municipal Airport (SER) is Columbus Municipal Airport (CLU), which is located 23 miles (38 kilometers) N of SER.
- Because of Freeman Municipal Airport's relatively low elevation of 583 feet, planes can take off or land at Freeman Municipal 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.
| 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 | 23.31 miles (37.51 km) N | Columbus Municipal Airport (CLU) | Columbus, Indiana, United States | |
| 2 | 26.45 miles (42.56 km) ESE | Madison Municipal Airport (MDN) | Madison, Indiana, United States | |
| 3 | 29.47 miles (47.42 km) WSW | Virgil I. Grissom Municipal Airport (BFR) | Bedford, Indiana, United States | |
| 4 | 40.98 miles (65.95 km) WNW | Monroe County Airport (BMG) | Bloomington, Indiana, United States | |
| 5 | 48.78 miles (78.50 km) SW | French Lick Municipal Airport (FRH) | French Lick, Indiana, United States | |
| 6 | 49.92 miles (80.33 km) SSE | Bowman Field (LOU) | Louisville, Kentucky, United States | |
| 7 | 52.68 miles (84.79 km) S | Louisville International Airport (SDF) | Louisville, Kentucky, United States | |
| 8 | 58.52 miles (94.17 km) NNW | Indianapolis International Airport (IND) | Indianapolis, Indiana, United States | |
| 9 | 60.51 miles (97.38 km) N | Pope Field (GFD) | Greenfield, Indiana, United States | |
| 10 | 67.17 miles (108.11 km) E | Cincinnati/Northern Kentucky International Airport (CVG) | Hebron, Kentucky (near Cincinnati), United States | |
| 11 | 67.70 miles (108.95 km) NE | Mettel Field (CEV) | Connersville, Indiana, United States | |
| 12 | 70.41 miles (113.31 km) S | Godman Army Airfield (FTK) | Fort Knox, Kentucky, United States | |
| 13 | 72.19 miles (116.18 km) NE | Miami University Airport (OXD) | Oxford, Ohio, United States | |
| 14 | 73.26 miles (117.90 km) SW | Huntingburg Airport (HNB) | Huntingburg, Indiana, United States | |
| 15 | 74.61 miles (120.07 km) SE | Capital City Airport (FFT) | Frankfort, Kentucky, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,222.13 miles (18,060.22 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,199.73 miles (18,024.17 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,176.59 miles (17,986.94 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 11,175.52 miles (17,985.22 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 11,142.58 miles (17,932.20 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,127.73 miles (17,908.29 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,118.27 miles (17,893.07 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 11,108.59 miles (17,877.50 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 11,102.40 miles (17,867.54 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 11,080.44 miles (17,832.19 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 11,067.30 miles (17,811.05 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,042.39 miles (17,770.96 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 11,018.38 miles (17,732.32 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,014.48 miles (17,726.04 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,992.30 miles (17,690.35 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |