Nonstop flight route between Alton, Illinois, United States and Fort Severn, Ontario, Canada:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(56°1'8"N by 87°40'33"W)
Distance from ALN to YER:
1,188.46 miles (1,912.64 km)
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Jump to:
- About this route
- ALN Airport Information
- YER Airport Information
- Facts about ALN
- Facts about YER
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to YER
- List of Nearest Airports to YER
- Map of Furthest Airports from YER
- List of Furthest Airports from YER
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Fort Severn Airport (YER), Fort Severn, Ontario, Canada would travel a Great Circle distance of 1,188 miles (or 1,913 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 Regional Airport and Fort Severn Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | ALN / KALN |
| Airport Name: | St. Louis Regional Airport |
| Location: | Alton, Illinois, United States |
| GPS Coordinates: | 38°53'25"N by 90°2'45"W |
| Area Served: | Alton, Illinois |
| Operator/Owner: | St. Louis Regional |
| Airport Type: | Public |
| Elevation: | 544 feet (166 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ALN |
| More Information: | ALN Maps & Info |
Arrival 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 |
Facts about St. Louis Regional Airport (ALN):
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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 Regional Airport (ALN) has 2 runways.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Fort Severn Airport (YER):
- 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 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.
- The closest airport to Fort Severn Airport (YER) is Peawanuck Airport (YPO), which is located 113 miles (181 kilometers) SE of YER.
- Fort Severn Airport (YER) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 19.64 miles (31.61 km) WSW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 22.85 miles (36.78 km) SSW | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 3 | 26.41 miles (42.50 km) SSE | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 36.08 miles (58.06 km) E | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 5 | 36.24 miles (58.32 km) WSW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 6 | 60.74 miles (97.76 km) ESE | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 68.78 miles (110.69 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 8 | 75.13 miles (120.92 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 9 | 88.08 miles (141.75 km) SSE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 10 | 90.73 miles (146.02 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 11 | 95.12 miles (153.07 km) NW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 12 | 96.44 miles (155.20 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 13 | 102.97 miles (165.72 km) ENE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 14 | 107.04 miles (172.27 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 15 | 115.57 miles (186.00 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,002.15 miles (17,706.21 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,979.99 miles (17,670.53 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,957.22 miles (17,633.90 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,954.58 miles (17,629.65 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,926.12 miles (17,583.85 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,910.74 miles (17,559.09 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,901.55 miles (17,544.30 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.24 miles (17,537.37 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,880.36 miles (17,510.20 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,861.31 miles (17,479.54 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,859.59 miles (17,476.77 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,841.22 miles (17,447.21 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,808.74 miles (17,394.93 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,807.95 miles (17,393.67 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,799.72 miles (17,380.43 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 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 | |