Nonstop flight route between Kelso, Washington, United States and Matadi, Democratic Republic of the Congo:
Departure Airport:

Arrival Airport:

Distance from KLS to MAT:
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- About this route
- KLS Airport Information
- MAT Airport Information
- Facts about KLS
- Facts about MAT
- Map of Nearest Airports to KLS
- List of Nearest Airports to KLS
- Map of Furthest Airports from KLS
- List of Furthest Airports from KLS
- Map of Nearest Airports to MAT
- List of Nearest Airports to MAT
- Map of Furthest Airports from MAT
- List of Furthest Airports from MAT
About this route:
A direct, nonstop flight between Southwest Washington Regional Airport (KLS), Kelso, Washington, United States and Tshimpi Airport (Matadi Airport) (MAT), Matadi, Democratic Republic of the Congo would travel a Great Circle distance of 8,628 miles (or 13,885 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 large distance between Southwest Washington Regional Airport and Tshimpi Airport (Matadi Airport), the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Southwest Washington Regional Airport and Tshimpi Airport (Matadi Airport). You'll see that it will travel the same route of the red line on this map!
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: | MAT / FZAM |
Airport Name: | Tshimpi Airport (Matadi Airport) |
Location: | Matadi, Democratic Republic of the Congo |
GPS Coordinates: | 5°47'53"S by 13°26'30"E |
Elevation: | 0 feet (0 meters) |
View all routes: | Routes from MAT |
More Information: | MAT Maps & Info |
Facts about Southwest Washington Regional Airport (KLS):
- Southwest Washington Regional Airport (KLS) currently has only 1 runway.
- 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.
- Kelso-Longview Airport opened in May 1941 on 109 acres of a nearby dairy farm, as a training field for amateur pilots, and has since become a regional transportation center for southwest Washington.
- There is one flight school located at the airport.
- 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.
Facts about Tshimpi Airport (Matadi Airport) (MAT):
- Because of Tshimpi Airport (Matadi Airport)'s relatively low elevation of 0 feet, planes can take off or land at Tshimpi Airport (Matadi 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 Tshimpi Airport (Matadi Airport) (MAT) is Cassidy International Airport (CXI), which is located 11,750 miles (18,909 kilometers) away in Christmas Island, Kiribati.
- The closest airport to Tshimpi Airport (Matadi Airport) (MAT) is Boma Airport (BOA), which is located 26 miles (42 kilometers) W of MAT.