Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Rocky Mountain House, Alberta, Canada:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(52°25'46"N by 114°54'15"W)
Distance from CPS to YRM:
1,520.88 miles (2,447.61 km)
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Jump to:
- About this route
- CPS Airport Information
- YRM Airport Information
- Facts about CPS
- Facts about YRM
- 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 YRM
- List of Nearest Airports to YRM
- Map of Furthest Airports from YRM
- List of Furthest Airports from YRM
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Rocky Mountain House Airport (YRM), Rocky Mountain House, Alberta, Canada would travel a Great Circle distance of 1,521 miles (or 2,448 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 Rocky Mountain House 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: | YRM / CYRM |
| Airport Name: | Rocky Mountain House Airport |
| Location: | Rocky Mountain House, Alberta, Canada |
| GPS Coordinates: | 52°25'46"N by 114°54'15"W |
| Operator/Owner: | Town of Rocky Mountain House |
| Airport Type: | Public |
| Elevation: | 3244 feet (989 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YRM |
| More Information: | YRM Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- 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.
- 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.
Facts about Rocky Mountain House Airport (YRM):
- The closest airport to Rocky Mountain House Airport (YRM) is Red Deer Regional Airport (YQF), which is located 46 miles (74 kilometers) ESE of YRM.
- Rocky Mountain House Airport (YRM) currently has only 1 runway.
- The furthest airport from Rocky Mountain House Airport (YRM) is Tôlanaro Airport (FTU), which is located 10,320 miles (16,609 kilometers) away in Tôlanaro, Madagascar.
| 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 | 45.96 miles (73.96 km) ESE | Red Deer Regional Airport (YQF) | Red Deer, Alberta, Canada | |
| 2 | 57.82 miles (93.05 km) N | Drayton Valley Industrial Airport (YDC) | Drayton Valley, Alberta, Canada | |
| 3 | 82.17 miles (132.23 km) NE | Edmonton International Airport (YEG) | Edmonton, Alberta, Canada | |
| 4 | 88.65 miles (142.68 km) SSW | Banff Airport (YBA) | Banff, Alberta, Canada | |
| 5 | 93.40 miles (150.31 km) NW | High Prairie Airport (ZHP) | High Prairie, Alberta, Canada | |
| 6 | 98.02 miles (157.75 km) SSE | Calgary International Airport (YYC) | Calgary, Alberta, Canada | |
| 7 | 102.54 miles (165.02 km) NW | Edson Airport (YET) | Edson, Alberta, Canada | |
| 8 | 104.11 miles (167.54 km) NNE | CFB Edmonton (YED) | Edmonton, Alberta, Canada | |
| 9 | 123.92 miles (199.43 km) NNW | Whitecourt Airport (YZU) | Whitecourt, Alberta, Canada | |
| 10 | 133.76 miles (215.26 km) WNW | Hinton/Jasper-Hinton Airport (YJP) | Hinton, Alberta, Canada | |
| 11 | 137.74 miles (221.68 km) WNW | Jasper Airport (YJA) | Jasper, Alberta, Canada | |
| 12 | 148.33 miles (238.71 km) E | Coronation Airport (YCT) | Coronation, Alberta, Canada | |
| 13 | 150.95 miles (242.94 km) SSW | Fairmont Hot Springs Airport (YCZ) | Fairmont Hot Springs, British Columbia, Canada | |
| 14 | 171.62 miles (276.20 km) E | Wainwright Aerodrome (YWV) | Wainwright, Alberta, Canada | |
| 15 | 172.05 miles (276.89 km) E | Vermilion Airport (YVG) | Vermilion, Alberta, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,320.08 miles (16,608.52 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,244.44 miles (16,486.78 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,226.38 miles (16,457.72 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,198.22 miles (16,412.41 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,190.41 miles (16,399.84 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,177.44 miles (16,378.96 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 7 | 10,157.99 miles (16,347.65 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 8 | 10,146.94 miles (16,329.87 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 9 | 10,141.72 miles (16,321.47 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 10 | 10,117.59 miles (16,282.64 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 11 | 10,114.51 miles (16,277.68 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 12 | 10,103.10 miles (16,259.32 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 13 | 10,101.76 miles (16,257.16 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 14 | 10,091.23 miles (16,240.22 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 15 | 10,090.70 miles (16,239.36 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |