Nonstop flight route between Sembach, Germany and Decatur, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from SEX to DEC:
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- About this route
- SEX Airport Information
- DEC Airport Information
- Facts about SEX
- Facts about DEC
- Map of Nearest Airports to SEX
- List of Nearest Airports to SEX
- Map of Furthest Airports from SEX
- List of Furthest Airports from SEX
- Map of Nearest Airports to DEC
- List of Nearest Airports to DEC
- Map of Furthest Airports from DEC
- List of Furthest Airports from DEC
About this route:
A direct, nonstop flight between Sembach KaserneSembach Air Base (SEX), Sembach, Germany and Decatur Airport (DEC), Decatur, Illinois, United States would travel a Great Circle distance of 4,464 miles (or 7,184 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 Decatur 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 Decatur 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: | DEC / KDEC |
Airport Name: | Decatur Airport |
Location: | Decatur, Illinois, United States |
GPS Coordinates: | 39°50'3"N by 88°51'56"W |
Area Served: | Decatur, Illinois |
Operator/Owner: | Decatur Park District |
Airport Type: | Public |
Elevation: | 682 feet (208 meters) |
# of Runways: | 3 |
View all routes: | Routes from DEC |
More Information: | DEC Maps & Info |
Facts about Sembach KaserneSembach Air Base (SEX):
- On 1 January 1957 a fourth squadron, the 19th TRS was transferred from the 47th Bombardment Wing at RAF Sculthorpe to the 66th TRW.
- After the departure of the 66th, Sembach was taken over by the 7127th Support Group in June 1958 as a 'placeholder' unit.
- During the remainder of the winter, the control tower, hangars, repair shops and other buildings were built along the taxiway.
- Sembach's origins date back to 1919 after World War I when French occupation troops used the eastern half of the present flightline as an airfield.
- Sembach is the home of the United States Army's 230th Military Police Company, the 95th Military Police Battalion, 18th Military Police Brigade, the 30th Medical Command, and the 786th Security Forces Squadron regional training center.
- 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 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 Decatur Airport (DEC):
- The Illinois Army National Guard has an Army Aviation Support Facility at the airport.
- The closest airport to Decatur Airport (DEC) is University of Illinois Willard Airport (CMI), which is located 34 miles (55 kilometers) ENE of DEC.
- The furthest airport from Decatur Airport (DEC) is Margaret River Airport (MGV), which is located 11,056 miles (17,793 kilometers) away in Margaret River, Western Australia, Australia.
- Decatur Airport covers 2,100 acres at an elevation of 682 feet.
- Because of Decatur Airport's relatively low elevation of 682 feet, planes can take off or land at Decatur 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.
- Decatur Airport (DEC) has 3 runways.