Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Eastmain, Quebec, Canada:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(52°13'35"N by 78°31'20"W)
Distance from CPS to ZEM:
1,096.37 miles (1,764.43 km)
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Jump to:
- About this route
- CPS Airport Information
- ZEM Airport Information
- Facts about CPS
- Facts about ZEM
- 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 ZEM
- List of Nearest Airports to ZEM
- Map of Furthest Airports from ZEM
- List of Furthest Airports from ZEM
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Eastmain River Airport (ZEM), Eastmain, Quebec, Canada would travel a Great Circle distance of 1,096 miles (or 1,764 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 Eastmain River 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: | ZEM / CZEM |
| Airport Name: | Eastmain River Airport |
| Location: | Eastmain, Quebec, Canada |
| GPS Coordinates: | 52°13'35"N by 78°31'20"W |
| Operator/Owner: | Eastmain River Band Council |
| Airport Type: | Public |
| Elevation: | 24 feet (7 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ZEM |
| More Information: | ZEM 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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 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 Eastmain River Airport (ZEM):
- The furthest airport from Eastmain River Airport (ZEM) is Margaret River Airport (MGV), which is located 11,003 miles (17,708 kilometers) away in Margaret River, Western Australia, Australia.
- Eastmain River Airport (ZEM) currently has only 1 runway.
- The closest airport to Eastmain River Airport (ZEM) is Waskaganish Airport (YKQ), which is located 53 miles (85 kilometers) S of ZEM.
- Because of Eastmain River Airport's relatively low elevation of 24 feet, planes can take off or land at Eastmain River 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 | 53.00 miles (85.29 km) S | Waskaganish Airport (YKQ) | Waskaganish, Quebec, Canada | |
| 2 | 55.71 miles (89.65 km) NNW | Wemindji Airport (YNC) | Wemindji, Quebec, Canada | |
| 3 | 102.49 miles (164.94 km) NNE | La Grande Rivière Airport (YGL) | Radisson, Quebec, Canada | |
| 4 | 108.14 miles (174.04 km) ESE | Nemiscau Airport (YNS) | Nemiscau, Quebec, Canada | |
| 5 | 110.11 miles (177.21 km) SW | Moosonee Airport (YMO) | Moosonee, Ontario, Canada | |
| 6 | 110.35 miles (177.60 km) N | Chisasibi Airport (YKU) | Chisasibi, Quebec, Canada | |
| 7 | 133.50 miles (214.85 km) W | Kashechewan Airport (ZKE) | Kashechewan, Ontario, Canada | |
| 8 | 134.30 miles (216.13 km) NE | La Grande-3 Airport (YAR) | Northern Quebec, Canada | |
| 9 | 134.34 miles (216.19 km) W | Fort Albany Airport (YFA) | Fort Albany, Ontario, Canada | |
| 10 | 171.12 miles (275.39 km) WNW | Attawapiskat Airport (YAT) | Attawapiskat, Ontario, Canada | |
| 11 | 173.15 miles (278.65 km) S | Matagami Airport (YNM) | Matagami, Quebec, Canada | |
| 12 | 213.37 miles (343.38 km) N | Kuujjuarapik Airport (YGW) | Kuujjuarapik, Quebec, Canada | |
| 13 | 227.51 miles (366.15 km) ENE | La Grande-4 Airport (YAH) | Northern Quebec, Canada | |
| 14 | 230.46 miles (370.89 km) SSE | Lebel-sur-Quévillon Airport (YLS) | Lebel-sur-Quévillon, Quebec, Canada | |
| 15 | 230.49 miles (370.93 km) S | La Sarre Airport (SSQ) | La Sarre, Quebec, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,003.25 miles (17,707.97 km) SSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,999.14 miles (17,701.36 km) SW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 10,997.02 miles (17,697.95 km) SW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 4 | 10,980.90 miles (17,672.00 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 10,954.88 miles (17,630.13 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 10,925.34 miles (17,582.59 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 10,871.15 miles (17,495.38 km) SSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 10,869.12 miles (17,492.11 km) SSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 10,857.15 miles (17,472.85 km) SSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,805.51 miles (17,389.74 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 11 | 10,772.35 miles (17,336.37 km) SSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 10,681.48 miles (17,190.13 km) SSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 13 | 10,680.57 miles (17,188.67 km) SSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,663.80 miles (17,161.68 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 15 | 10,653.11 miles (17,144.48 km) SW | Windarling Airport (WRN) | Windarling, Australia | |