Nonstop flight route between Sembach, Germany and Port Alexander, Alaska, United States:

About this route:

A direct, nonstop flight between Sembach KaserneSembach Air Base (SEX), Sembach, Germany and Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States would travel a Great Circle distance of 4,818 miles (or 7,754 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 Port Alexander Seaplane Base, 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 Port Alexander Seaplane Base. 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):

• The American flag first flew at Sembach Air Base on 8 July 1953.
• 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 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.
• In July 1958, the 66th TRW, was transferred from Sembach to Laon Air Base, France.
• 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.
• 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.

Facts about Port Alexander Seaplane Base (PTD):

• Port Alexander Seaplane Base is a state owned, public use seaplane base located in Port Alexander, a city at the southeastern corner of Baranof Island in the Petersburg Census Area of the U.S.
• In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".
• The furthest airport from Port Alexander Seaplane Base (PTD) is Port Alfred Airport (AFD), which is located 10,640 miles (17,123 kilometers) away in Port Alfred, South Africa.
• Because of Port Alexander Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Alexander Seaplane Base 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 Port Alexander Seaplane Base (PTD) is Point Baker Seaplane Base (KPB), which is located 40 miles (64 kilometers) E of PTD.
• Port Alexander Seaplane Base (PTD) currently has only 1 runway.