Nonstop flight route between Sembach, Germany and St. Mary's, Alaska, United States:

About this route:

A direct, nonstop flight between Sembach KaserneSembach Air Base (SEX), Sembach, Germany and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 4,711 miles (or 7,582 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 St. Mary's 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 St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Sembach KaserneSembach Air Base (SEX):

• After the departure of the 66th, Sembach was taken over by the 7127th Support Group in June 1958 as a 'placeholder' unit.
• The third and final phase of construction at Sembach Air Base was conducted in the summer of 1954 when the housing area was built.
• 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.
• 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'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.
• In April 1951, German surveyors visited the area in the company of French officers.
• Despite these efforts, the land was successfully surveyed in August 1952.

Facts about St. Mary's Airport (KSM):

• The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
• Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
• St. Mary's Airport (KSM) has 2 runways.
• The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.