Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Katanning, Western Australia, Australia:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(33°41'57"S by 117°39'18"E)
Distance from CPS to KNI:
10,855.26 miles (17,469.80 km)
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Jump to:
- About this route
- CPS Airport Information
- KNI Airport Information
- Facts about CPS
- Facts about KNI
- 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 KNI
- List of Nearest Airports to KNI
- Map of Furthest Airports from KNI
- List of Furthest Airports from KNI
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Katanning Airport (KNI), Katanning, Western Australia, Australia would travel a Great Circle distance of 10,855 miles (or 17,470 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 Katanning 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 Katanning 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: | KNI / YKNG |
| Airport Name: | Katanning Airport |
| Location: | Katanning, Western Australia, Australia |
| GPS Coordinates: | 33°41'57"S by 117°39'18"E |
| Operator/Owner: | Katanning Shire Council |
| Airport Type: | Public |
| Elevation: | 932 feet (284 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KNI |
| More Information: | KNI 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.
- 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.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
Facts about Katanning Airport (KNI):
- The furthest airport from Katanning Airport (KNI) is L.F. Wade International Airport (BDA), which is nearly antipodal to Katanning Airport (meaning Katanning Airport is almost on the exact opposite side of the Earth from L.F. Wade International Airport), and is located 12,273 miles (19,752 kilometers) away in Ferry Reach (near Hamilton), Bermuda.
- Because of Katanning Airport's relatively low elevation of 932 feet, planes can take off or land at Katanning 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.
- Katanning Airport (KNI) has 2 runways.
- The closest airport to Katanning Airport (KNI) is Albany Airport (ALH), which is located 86 miles (139 kilometers) S of KNI.
| 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 | 86.39 miles (139.03 km) S | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 2 | 95.18 miles (153.18 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 116.06 miles (186.78 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 129.62 miles (208.60 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 147.53 miles (237.43 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 6 | 151.13 miles (243.21 km) NW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 156.14 miles (251.28 km) NW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 169.56 miles (272.88 km) NW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 9 | 239.58 miles (385.57 km) E | Esperance Airport (EPR) | Esperance, Australia | |
| 10 | 273.09 miles (439.50 km) NNE | Windarling Airport (WRN) | Windarling, Australia | |
| 11 | 279.74 miles (450.19 km) NNW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 287.93 miles (463.38 km) NE | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 13 | 299.80 miles (482.49 km) NE | Kalgoorlie-Boulder Airport (KGI) | Kalgoorlie, Western Australia, Australia | |
| 14 | 325.33 miles (523.57 km) NNW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 380.85 miles (612.92 km) NNW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,273.15 miles (19,751.67 km) ENE | L.F. Wade International Airport (BDA) | Ferry Reach (near Hamilton), Bermuda | |
| 2 | 11,765.63 miles (18,934.90 km) NE | Nantucket Memorial Airport (ACK) | Nantucket, Massachusetts, United States | |
| 3 | 11,739.08 miles (18,892.18 km) NE | Marthas Vineyard Airport (MVY) | Vineyard Haven, Massachusetts, United States | |
| 4 | 11,736.41 miles (18,887.87 km) NE | Barnstable Municipal Airport (HYA) | Hyannis, Massachusetts, United States | |
| 5 | 11,728.77 miles (18,875.58 km) NE | Otis Air National Guard Base Coast Guard Air Station Cape Cod (FMH) | Falmouth, Massachusetts, United States | |
| 6 | 11,717.02 miles (18,856.66 km) NE | Provincetown Municipal Airport (PVC) | Provincetown, Massachusetts, United States | |
| 7 | 11,714.53 miles (18,852.66 km) NE | Block Island State Airport (BID) | Block Island, Rhode Island, United States | |
| 8 | 11,712.70 miles (18,849.72 km) NE | New Bedford Regional Airport (EWB) | New Bedford, Massachusetts, United States | |
| 9 | 11,708.77 miles (18,843.40 km) NNE | Yarmouth Airport (YQI) | Yarmouth, Nova Scotia, Canada | |
| 10 | 11,708.74 miles (18,843.35 km) NE | Plymouth Municipal Airport (PYM) | Plymouth, Massachusetts, United States | |
| 11 | 11,708.16 miles (18,842.41 km) NE | Newport State Airport (NPT) | Newport, Rhode Island, United States | |
| 12 | 11,705.46 miles (18,838.06 km) NE | Montauk Airport (MTP) | Montauk, New York, United States | |
| 13 | 11,697.54 miles (18,825.33 km) NE | East Hampton Airport (HTO) | East Hampton, New York, United States | |
| 14 | 11,693.44 miles (18,818.72 km) NE | T. F. Green Airport (PVD) | Providence, Rhode Island, United States | |
| 15 | 11,693.15 miles (18,818.26 km) NE | Elizabeth Field (FID) | Fishers Island, New York, United States | |