Nonstop flight route between Sembach, Germany and Kelso, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from SEX to KLS:
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- About this route
- SEX Airport Information
- KLS Airport Information
- Facts about SEX
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- Map of Nearest Airports to SEX
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- Map of Furthest Airports from SEX
- List of Furthest Airports from SEX
- Map of Nearest Airports to KLS
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- List of Furthest Airports from KLS
About this route:
A direct, nonstop flight between Sembach KaserneSembach Air Base (SEX), Sembach, Germany and Southwest Washington Regional Airport (KLS), Kelso, Washington, United States would travel a Great Circle distance of 5,200 miles (or 8,368 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 Sembach KaserneSembach Air Base and Southwest Washington Regional 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 Sembach KaserneSembach Air Base and Southwest Washington Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SEX / ETAS |
Airport Name: | Sembach KaserneSembach Air Base |
Location: | Sembach, Germany |
GPS Coordinates: | 49°31'41"N by 7°51'56"E |
Operator/Owner: | United States with authority from Germany |
View all routes: | Routes from SEX |
More Information: | SEX 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 Sembach KaserneSembach Air Base (SEX):
- In February 1957, the RB-57s of the 30th TFS at Sembach were also being replaced by the Douglas RB-66 Destroyer.
- Sembach Kaserne is a United States Army installation in Sembach, Germany, near Kaiserslautern, and is about 19 miles east of Ramstein Air Base.
- During the Cold War, Sembach Air Base housed a variety of USAF Tactical Reconnaissance, Close Air Support and Tactical Air Control units as a front line NATO air base.
- In April 1951, German surveyors visited the area in the company of French officers.
- In the middle of April 1952, the residents of Sembach learned that the land to the north of the now completed flightline was to be used for the construction of multi-story barracks and office buildings.
- The closest airport to Sembach KaserneSembach Air Base (SEX) is Ramstein Air Base (RMS), which is located only 13 miles (21 kilometers) WSW of SEX.
- The 38th TMW inactivated in September 1966, and its missiles were returned to the United States.
- The furthest airport from Sembach KaserneSembach Air Base (SEX) is Chatham Islands (CHT), which is located 11,992 miles (19,299 kilometers) away in Waitangi, Chatham Islands, New Zealand.
Facts about Southwest Washington Regional Airport (KLS):
- 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.
- 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.
- Southwest Washington Regional Airport covers an area of 110 acres at an elevation of 20 feet above mean sea level.