Nonstop flight route between Sembach, Germany and Hayden, Colorado, United States:
Departure Airport:

Arrival Airport:

Distance from SEX to HDN:
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- About this route
- SEX Airport Information
- HDN Airport Information
- Facts about SEX
- Facts about HDN
- 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 HDN
- List of Nearest Airports to HDN
- Map of Furthest Airports from HDN
- List of Furthest Airports from HDN
About this route:
A direct, nonstop flight between Sembach KaserneSembach Air Base (SEX), Sembach, Germany and Yampa Valley Airport (HDN), Hayden, Colorado, United States would travel a Great Circle distance of 5,076 miles (or 8,169 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 Yampa Valley 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 Yampa Valley 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: | HDN / KHDN |
Airport Names: |
|
Location: | Hayden, Colorado, United States |
GPS Coordinates: | 40°28'51"N by 107°13'4"W |
Area Served: | Hayden, Colorado |
Operator/Owner: | Routt County |
Airport Type: | Public |
Elevation: | 6606 feet (2,014 meters) |
# of Runways: | 1 |
View all routes: | Routes from HDN |
More Information: | HDN Maps & Info |
Facts about Sembach KaserneSembach Air Base (SEX):
- 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 1950, as a result of the Cold War threat of the Soviet Union, the United States was rapidly expanding its air forces, announcing an increase in the number of combat wings from 48 in 1950 to 95 by June 1952.
- 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.
- Another reason for the move to France was the unsuitability of Sembach's runway, which was barely adequate for the RF-84, but absolutely unsuitable for the higher performance RF-101 aircraft
- 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.
- With this announcement, and everyone being satisfied, Sembach became a center of activity once more, and construction of the administrative area of the base began in October 1952.
- As 1957 progressed USAFE HQ decided to reorganizs its tactical reconnaissance assets.
Facts about Yampa Valley Airport (HDN):
- All seasonal flights begin in December and end in April.
- There is no Air Traffic Control Tower at the airport.
- The furthest airport from Yampa Valley Airport (HDN) is Sir Gaëtan Duval Airport (RRG), which is located 10,901 miles (17,543 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Yampa Valley Airport (HDN) is Craig–Moffat Airport (CIG), which is located only 16 miles (26 kilometers) W of HDN.
- In addition to being known as "Yampa Valley Airport", another name for HDN is "Yampa Valley Regional Airport".
- Yampa Valley Airport (HDN) currently has only 1 runway.
- Because of Yampa Valley Airport's high elevation of 6,606 feet, planes must typically fly at a faster airspeed in order to takeoff or land at HDN. Combined with a high temperature, this could make HDN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.