Nonstop flight route between Rocky Mountain House, Alberta, Canada and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:
(52°25'46"N by 114°54'15"W)
Arrival Airport:
(38°34'14"N by 90°9'21"W)
Distance from YRM to CPS:
1,520.88 miles (2,447.61 km)
Share this route:
Jump to:
- About this route
- YRM Airport Information
- CPS Airport Information
- Facts about YRM
- Facts about 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
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Rocky Mountain House Airport (YRM), Rocky Mountain House, Alberta, Canada and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States 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 Rocky Mountain House Airport and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival 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 |
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.
Facts about St. Louis Downtown Airport (CPS):
- The airport closed in 1959 and reopened six years later as Bi-State Parks 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.
- 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.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
| 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 | |
| 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 | |