Nonstop flight route between Niagara Falls, New York, United States and Kelso, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from IAG to KLS:
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- About this route
- IAG Airport Information
- KLS Airport Information
- Facts about IAG
- Facts about KLS
- Map of Nearest Airports to IAG
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- Map of Furthest Airports from IAG
- List of Furthest Airports from IAG
- Map of Nearest Airports to KLS
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- List of Furthest Airports from KLS
About this route:
A direct, nonstop flight between Niagara Falls International Airport (IAG), Niagara Falls, New York, United States and Southwest Washington Regional Airport (KLS), Kelso, Washington, United States would travel a Great Circle distance of 2,144 miles (or 3,451 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 Niagara Falls International Airport and Southwest Washington Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | IAG / KIAG |
Airport Name: | Niagara Falls International Airport |
Location: | Niagara Falls, New York, United States |
GPS Coordinates: | 43°6'25"N by 78°56'45"W |
Airport Type: | Public / Military |
Elevation: | 589 feet (180 meters) |
# of Runways: | 3 |
View all routes: | Routes from IAG |
More Information: | IAG Maps & Info |
Arrival 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 |
Facts about Niagara Falls International Airport (IAG):
- The closest airport to Niagara Falls International Airport (IAG) is St. Catharines/Niagara District Airport (YCM), which is located only 13 miles (21 kilometers) WNW of IAG.
- During World War II, Bell Aircraft established a large manufacturing plant next to the airport, where during the war it built over 10,000 P-39 Airacobras and P-63 Kingcobras.
- Niagara Falls International Airport (IAG) has 3 runways.
- The United States Army Air Forces assumed jurisdiction of the airport during the war, with the 3522d Army Air Force Base Unit managing the airport and coordinating use of the airfield with Bell Aircraft.
- Niagara Falls International Airport handled 200,000 passengers last year.
- An estimated 80% of the passenger traffic at the airport comes from Canadians.
- The furthest airport from Niagara Falls International Airport (IAG) is Margaret River Airport (MGV), which is located 11,450 miles (18,427 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Niagara Falls International Airport's relatively low elevation of 589 feet, planes can take off or land at Niagara Falls 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.
- On September 2, 2009, Niagara Falls International Airport dedicated its new two-story terminal.
Facts about Southwest Washington Regional Airport (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.
- 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.
- Southwest Washington Regional Airport (KLS) currently has only 1 runway.
- There is one flight school located at the airport.
- 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.
- 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.
- The airport has one passenger terminal consisting of 12 gates.