Nonstop flight route between Kelso, Washington, United States and St. Louis, Missouri, United States:
Departure Airport:

Arrival Airport:

Distance from KLS to STL:
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- About this route
- KLS Airport Information
- STL Airport Information
- Facts about KLS
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- Map of Furthest Airports from KLS
- List of Furthest Airports from KLS
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- List of Furthest Airports from STL
About this route:
A direct, nonstop flight between Southwest Washington Regional Airport (KLS), Kelso, Washington, United States and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States would travel a Great Circle distance of 1,722 miles (or 2,771 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 Southwest Washington Regional 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: | KLS / KKLS |
Airport Name: | Southwest Washington Regional Airport |
Location: | Kelso, Washington, United States |
GPS Coordinates: | 46°7'5"N by 122°53'53"W |
Area Served: | Longview-Kelso Metropolitan Area |
Operator/Owner: | City of Kelso |
Airport Type: | Public |
Elevation: | 20 feet (6 meters) |
# of Runways: | 1 |
View all routes: | Routes from KLS |
More Information: | KLS 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 Southwest Washington Regional Airport (KLS):
- The closest airport to Southwest Washington Regional Airport (KLS) is South Lewis County Airport (TDO), which is located 25 miles (41 kilometers) N of KLS.
- Southwest Washington Regional Airport covers an area of 110 acres at an elevation of 20 feet above mean sea level.
- Southwest Washington Regional Airport is a city-owned public-use airport located two nautical miles southeast of the central business district of Kelso, in Cowlitz County, Washington, United States.
- Southwest Washington Regional Airport (KLS) currently has only 1 runway.
- Because of Southwest Washington Regional Airport's relatively low elevation of 20 feet, planes can take off or land at Southwest Washington 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.
- The furthest airport from Southwest Washington Regional Airport (KLS) is Tôlanaro Airport (FTU), which is located 10,876 miles (17,503 kilometers) away in Tôlanaro, Madagascar.
Facts about Lambert–St. Louis International Airport (STL):
- 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.
- 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.
- Lambert–St. Louis International Airport (STL) has 4 runways.
- TWA's hub grew again in 1986 when the airline bought Ozark Airlines, which had its hub at Lambert's Concourse D.
- In 1982, Trans World Airlines moved its hub from Kansas City International Airport.
- To handle the increasing passenger traffic, Minoru Yamasaki was commissioned to design a new terminal at Lambert.
- 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.
- 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.
- On October 22, 2012, a Virgin Atlantic Airbus A340 landed at Lambert carrying VA Executives, including Richard Branson to discuss and explore the likelihood of a St Louis Route.
- 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.