Nonstop flight route between Sembach, Germany and Alert, Nunavut, Canada:
Departure Airport:

Arrival Airport:

Distance from SEX to YLT:
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- About this route
- SEX Airport Information
- YLT Airport Information
- Facts about SEX
- Facts about YLT
- 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 YLT
- List of Nearest Airports to YLT
- Map of Furthest Airports from YLT
- List of Furthest Airports from YLT
About this route:
A direct, nonstop flight between Sembach KaserneSembach Air Base (SEX), Sembach, Germany and Alert Airport (YLT), Alert, Nunavut, Canada would travel a Great Circle distance of 2,658 miles (or 4,277 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 Alert 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 Alert 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: | YLT / CYLT |
Airport Name: | Alert Airport |
Location: | Alert, Nunavut, Canada |
GPS Coordinates: | 82°31'4"N by 62°16'50"W |
Operator/Owner: | DND/1CdnAirDiv Alert AMO Ottawa |
Airport Type: | Military |
Elevation: | 100 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from YLT |
More Information: | YLT Maps & Info |
Facts about Sembach KaserneSembach Air Base (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.
- Sembach Kaserne is a United States Army installation in Sembach, Germany, near Kaiserslautern, and is about 19 miles east of Ramstein Air Base.
- In 1939, the German Luftwaffe ordered that the area be reserved for use as a fighter base.
- On 1 January 1957 a fourth squadron, the 19th TRS was transferred from the 47th Bombardment Wing at RAF Sculthorpe to the 66th TRW.
- 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.
- 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 third and final phase of construction at Sembach Air Base was conducted in the summer of 1954 when the housing area was built.
- During the remainder of the winter, the control tower, hangars, repair shops and other buildings were built along the taxiway.
- After the departure of the 66th, Sembach was taken over by the 7127th Support Group in June 1958 as a 'placeholder' unit.
Facts about Alert Airport (YLT):
- The furthest airport from Alert Airport (YLT) is Teniente Rodolfo Marsh Airport (TNM), which is located 9,999 miles (16,092 kilometers) away in Villa Las Estrellas, Antarctica.
- Alert Airport (YLT) currently has only 1 runway.
- Because of Alert Airport's relatively low elevation of 100 feet, planes can take off or land at Alert 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 closest airport to Alert Airport (YLT) is Eureka Aerodrome (YEU), which is located 299 miles (481 kilometers) WSW of YLT.
- A weather station was established on the site in 1950, and in 1957 construction began on the military facilities which are still in use to this day.
- Alert Airport is the world's northernmost permanent airport, located at Alert, Nunavut, Canada, approximately 830 km south of the true North Pole.