Nonstop flight route between Fort Severn, Ontario, Canada and St. Louis, Missouri, United States:
Departure Airport:

Arrival Airport:

Distance from YER to STL:
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- About this route
- YER Airport Information
- STL Airport Information
- Facts about YER
- Facts about STL
- 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 STL
- List of Nearest Airports to STL
- Map of Furthest Airports from STL
- List of Furthest Airports from STL
About this route:
A direct, nonstop flight between Fort Severn Airport (YER), Fort Severn, Ontario, Canada and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States would travel a Great Circle distance of 1,200 miles (or 1,931 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 Lambert–St. Louis International 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: | STL / KSTL |
Airport Name: | Lambert–St. Louis International Airport |
Location: | St. Louis, Missouri, United States |
GPS Coordinates: | 38°44'49"N by 90°21'41"W |
Area Served: | Greater St. Louis, Missouri |
Operator/Owner: | City of St. Louis |
Airport Type: | Public |
Elevation: | 605 feet (184 meters) |
# of Runways: | 4 |
View all routes: | Routes from STL |
More Information: | STL 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 Lambert–St. Louis International Airport (STL):
- In the late 1920s, Lambert Field became the first airport with an air traffic control system—albeit one that communicated with pilots via waving flags.
- In May 2013, Moody's raised its rating on Lambert Airport's bonds to A3-stable outlook from Baa1 with a stable outlook.
- After the war, NAS St.
- During the war, the airport became a manufacturing base for McDonnell Aircraft and Curtiss-Wright.
- The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
- Lambert–St. Louis International Airport (STL) has 4 runways.
- The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
- In 1985, Southwest Airlines began service, an event that would lead to major changes at the airport in the coming years.
- In 2006, the United States Air Force announced plans to turn the 131st Fighter Wing of the Missouri Air National Guard into the 131st Bomb Wing.
- Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis International 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.