Nonstop flight route between St. Louis, Missouri, United States and Hay River, Northwest Territories, Canada:
Departure Airport:

Arrival Airport:

Distance from STL to YHY:
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- About this route
- STL Airport Information
- YHY Airport Information
- Facts about STL
- Facts about YHY
- Map of Nearest Airports to STL
- List of Nearest Airports to STL
- Map of Furthest Airports from STL
- List of Furthest Airports from STL
- Map of Nearest Airports to YHY
- List of Nearest Airports to YHY
- Map of Furthest Airports from YHY
- List of Furthest Airports from YHY
About this route:
A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Hay River/Merlyn Carter Airport (YHY), Hay River, Northwest Territories, Canada would travel a Great Circle distance of 1,876 miles (or 3,019 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 Lambert–St. Louis International Airport and Hay River/Merlyn Carter Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | YHY / CYHY |
Airport Name: | Hay River/Merlyn Carter Airport |
Location: | Hay River, Northwest Territories, Canada |
GPS Coordinates: | 60°50'22"N by 115°46'58"W |
Operator/Owner: | Government of the Northwest Territories |
Airport Type: | Public |
Elevation: | 541 feet (165 meters) |
# of Runways: | 2 |
View all routes: | Routes from YHY |
More Information: | YHY Maps & Info |
Facts about Lambert–St. Louis International Airport (STL):
- Lambert–St. Louis International Airport (STL) has 4 runways.
- 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.
- By September 2002, Lambert's passenger traffic had declined by 16.9% from before the terrorist attacks a year earlier, which was the 8th biggest percentage drop of the major US airports.
- 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 1925, the airport became home to Naval Air Station St.
- During the war, the airport became a manufacturing base for McDonnell Aircraft and Curtiss-Wright.
- As of May 2012, the airport is on a significant upswing, with traffic up by about 14%.
- Despite the entry of Southwest Airlines in the market, the TWA buyout of Ozark and subsequent increase in the number of nonstop cities served, the total number of passengers using Lambert held steady from 1985 through 1993, ranging between 19 million and 20 million passengers per year throughout the period.
- In June 1920, the Aero Club of St.
- 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.
Facts about Hay River/Merlyn Carter Airport (YHY):
- The closest airport to Hay River/Merlyn Carter Airport (YHY) is Fort Resolution Airport (YFR), which is located 74 miles (119 kilometers) ENE of YHY.
- Hay River/Merlyn Carter Airport (YHY) has 2 runways.
- Because of Hay River/Merlyn Carter Airport's relatively low elevation of 541 feet, planes can take off or land at Hay River/Merlyn Carter 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 Hay River/Merlyn Carter Airport (YHY) is Port Alfred Airport (AFD), which is located 9,926 miles (15,974 kilometers) away in Port Alfred, South Africa.