Nonstop flight route between Fort Severn, Ontario, Canada and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:
(56°1'8"N by 87°40'33"W)
Arrival Airport:
(38°34'14"N by 90°9'21"W)
Distance from YER to CPS:
1,210.94 miles (1,948.81 km)
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Jump to:
- About this route
- YER Airport Information
- CPS Airport Information
- Facts about YER
- Facts about CPS
- Map of Nearest Airports to YER
- List of Nearest Airports to YER
- Map of Furthest Airports from YER
- List of Furthest Airports from YER
- 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 Fort Severn Airport (YER), Fort Severn, Ontario, Canada and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 1,211 miles (or 1,949 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 Fort Severn 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: | YER / CYER |
| Airport Name: | Fort Severn Airport |
| Location: | Fort Severn, Ontario, Canada |
| GPS Coordinates: | 56°1'8"N by 87°40'33"W |
| Operator/Owner: | Government of Ontario |
| Airport Type: | Public |
| Elevation: | 52 feet (16 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YER |
| More Information: | YER 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 Fort Severn Airport (YER):
- Fort Severn Airport (YER) currently has only 1 runway.
- Because of Fort Severn Airport's relatively low elevation of 52 feet, planes can take off or land at Fort Severn 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 closest airport to Fort Severn Airport (YER) is Peawanuck Airport (YPO), which is located 113 miles (181 kilometers) SE of YER.
- The furthest airport from Fort Severn Airport (YER) is Margaret River Airport (MGV), which is located 10,566 miles (17,005 kilometers) away in Margaret River, Western Australia, Australia.
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.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 112.71 miles (181.40 km) SE | Peawanuck Airport (YPO) | Peawanuck, Ontario, Canada |     |
| 2 | 170.77 miles (274.83 km) W | Shamattawa Airport (ZTM) | Shamattawa, Manitoba, Canada | |
| 3 | 175.78 miles (282.89 km) SSW | Big Trout Lake Airport (YTL) | Big Trout Lake, Ontario, Canada | |
| 4 | 176.58 miles (284.18 km) SSW | Kasabonika Airport (XKS) | Kasabonika First Nation, Ontario, Canada | |
| 5 | 194.31 miles (312.70 km) SW | Bearskin Lake Airport (XBE) | Bearskin Lake, Ontario, Canada | |
| 6 | 211.73 miles (340.75 km) S | Webequie Airport (YWP) | Webequie, Ontario, Canada | |
| 7 | 225.33 miles (362.64 km) SSW | Kingfisher Lake Airport (KIF) | Kingfisher Lake, Ontario, Canada | |
| 8 | 231.82 miles (373.07 km) SW | Sachigo Lake Airport (ZPB) | Sachigo Lake, Ontario, Canada | |
| 9 | 241.37 miles (388.45 km) SW | Muskrat Dam Airport (MSA) | Muskrat Dam, Ontario, Canada | |
| 10 | 257.71 miles (414.75 km) SW | Round Lake (Weagamow Lake) Airport (ZRJ) | Round Lake, Ontario, Canada | |
| 11 | 263.79 miles (424.52 km) WSW | Gods River Airport (ZGI) | Gods River, Manitoba, Canada | |
| 12 | 264.37 miles (425.47 km) S | Lansdowne House Airport (YLH) | Lansdowne House, Ontario, Canada | |
| 13 | 265.28 miles (426.92 km) WSW | Red Sucker Lake Airport (YRS) | Red Sucker Lake, Manitoba, Canada | |
| 14 | 271.36 miles (436.71 km) W | Gillam Airport (YGX) | Gillam, Manitoba, Canada | |
| 15 | 286.34 miles (460.82 km) WSW | Gods Lake Narrows Airport (YGO) | Gods Lake Narrows, Manitoba, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,566.35 miles (17,004.85 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,557.77 miles (16,991.03 km) SW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 10,549.78 miles (16,978.18 km) SW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 4 | 10,543.40 miles (16,967.91 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 10,517.03 miles (16,925.47 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 10,480.57 miles (16,866.81 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 10,436.86 miles (16,796.46 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 10,433.28 miles (16,790.70 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 10,421.32 miles (16,771.45 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,353.46 miles (16,662.23 km) SW | Esperance Airport (EPR) | Esperance, Australia | |
| 11 | 10,343.92 miles (16,646.89 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 12 | 10,258.01 miles (16,508.63 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 13 | 10,250.28 miles (16,496.19 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,217.54 miles (16,443.50 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,214.29 miles (16,438.27 km) SW | Kambalda Airport (KDB) | Kambalda, Western Australia, Australia | |
| 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 | |