Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Horsham, Victoria, Australia:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(36°40'10"S by 142°10'22"E)
Distance from CPS to HSM:
9,609.26 miles (15,464.57 km)
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Jump to:
- About this route
- CPS Airport Information
- HSM Airport Information
- Facts about CPS
- Facts about HSM
- 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 HSM
- List of Nearest Airports to HSM
- Map of Furthest Airports from HSM
- List of Furthest Airports from HSM
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Horsham Airport (HSM), Horsham, Victoria, Australia would travel a Great Circle distance of 9,609 miles (or 15,465 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 St. Louis Downtown Airport and Horsham 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 St. Louis Downtown Airport and Horsham Airport. You'll see that it will travel the same route of the red line on this map!
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: | HSM / YHSM |
| Airport Name: | Horsham Airport |
| Location: | Horsham, Victoria, Australia |
| GPS Coordinates: | 36°40'10"S by 142°10'22"E |
| Operator/Owner: | Horsham Rural City Council |
| Airport Type: | Public |
| Elevation: | 445 feet (136 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from HSM |
| More Information: | HSM Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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.
- 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.
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
- 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.
Facts about Horsham Airport (HSM):
- The furthest airport from Horsham Airport (HSM) is Flores Airport (FLW), which is nearly antipodal to Horsham Airport (meaning Horsham Airport is almost on the exact opposite side of the Earth from Flores Airport), and is located 12,025 miles (19,352 kilometers) away in Flores Island, Azores, Portugal.
- Because of Horsham Airport's relatively low elevation of 445 feet, planes can take off or land at Horsham 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.
- Horsham Airport (HSM) has 2 runways.
- The closest airport to Horsham Airport (HSM) is Ararat Airport (ARY), which is located 63 miles (102 kilometers) SE of HSM.
| 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 | 63.11 miles (101.56 km) SE | Ararat Airport (ARY) | Ararat, Victoria, Australia | |
| 2 | 66.79 miles (107.48 km) N | Hopetoun Airport (HTU) | Hopetoun, Victoria, Australia | |
| 3 | 67.88 miles (109.23 km) S | Hamilton Airport (HLT) | Hamilton, Victoria, Australia | |
| 4 | 106.56 miles (171.49 km) SW | Mount Gambier Airport (MGB) | Mount Gambier, Australia | |
| 5 | 113.31 miles (182.36 km) S | Warrnambool Airport (WMB) | Warrnambool, Victoria, Australia | |
| 6 | 117.17 miles (188.57 km) ENE | Kerang Airport (KRA) | Kerang, Victoria, Australia | |
| 7 | 119.58 miles (192.44 km) E | Bendigo Airport (BXG) | Bendigo, Victoria, Australia | |
| 8 | 120.21 miles (193.46 km) SSW | Portland Airport (PTJ) | Portland, Victoria, Australia | |
| 9 | 139.58 miles (224.64 km) N | Robinvale Airport (RBC) | Robinvale, Victoria, Australia | |
| 10 | 144.80 miles (233.03 km) SE | Avalon Airport (AVV) | Avalon, Victoria, Australia | |
| 11 | 148.25 miles (238.59 km) ENE | Echuca Airport (ECH) | Echuca, Victoria, Australia | |
| 12 | 159.97 miles (257.45 km) SE | Geelong Airport (GEX) | Grovedale, Victoria, Australia | |
| 13 | 161.92 miles (260.58 km) NNE | Balranald Airport (BZD) | Balranald, New South Wales, Australia | |
| 14 | 162.55 miles (261.60 km) ESE | Melbourne Airport (MEL) | Melbourne, Victoria, Australia | |
| 15 | 167.05 miles (268.83 km) ESE | Essendon Airport (MEB) | Melbourne, Victoria, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,024.94 miles (19,352.22 km) WNW | Flores Airport (FLW) | Flores Island, Azores, Portugal | |
| 2 | 12,017.42 miles (19,340.12 km) WNW | Corvo Airport (CVU) | Corvo Island, Azores, Portugal | |
| 3 | 11,922.14 miles (19,186.78 km) WNW | Horta International Airport (HOR) | Horta, Azores, Portugal | |
| 4 | 11,907.11 miles (19,162.58 km) WNW | Pico Airport (PIX) | Pico Island, Azores, Portugal | |
| 5 | 11,877.17 miles (19,114.41 km) WNW | Graciosa Airport (GRW) | Graciosa Island, Azores, Portugal | |
| 6 | 11,832.84 miles (19,043.07 km) WNW | Lajes Air Base (TER) | Lajes, Azores, Portugal | |
| 7 | 11,765.69 miles (18,934.99 km) W | João Paulo II Airport (PDL) | Ponta Delgada, Azores, Portugal | |
| 8 | 11,737.00 miles (18,888.82 km) W | Santa Maria Airport (SMA) | Santa Maria, Portugal | |
| 9 | 11,364.76 miles (18,289.76 km) NE | St. John's International Airport (YYT) | St. John's, Newfoundland and Labrador, Canada | |
| 10 | 11,266.14 miles (18,131.04 km) NE | Saint-Pierre Airport (FSP) | Saint-Pierre, Saint Pierre and Miquelon, France | |
| 11 | 11,245.99 miles (18,098.61 km) NE | Miquelon Airport (MQC) | Miquelon, Saint Pierre and Miquelon | |
| 12 | 11,242.49 miles (18,092.99 km) NE | Gander International Airport (YQX) | Gander, Newfoundland, Canada | |
| 13 | 11,212.42 miles (18,044.60 km) W | Madeira Airport (FNC) | Funchal, Madeira, Portugal | |
| 14 | 11,196.95 miles (18,019.69 km) W | Porto Santo Airport (PXO) | Porto Santo, Madeira, Portugal | |
| 15 | 11,147.12 miles (17,939.50 km) WNW | La Palma Airport (SPC) | La Palma, Canary Islands, Spain | |