Nonstop flight route between Georgetown, Ascension Island, Saint Helena and Half Moon Bay, California, United States:

About this route:

A direct, nonstop flight between RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena and Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF), Half Moon Bay, California, United States would travel a Great Circle distance of 7,544 miles (or 12,140 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 RAF Ascension and Half Moon Bay AirportHalf Moon Bay Flight Strip, 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 RAF Ascension and Half Moon Bay AirportHalf Moon Bay Flight Strip. 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 RAF Ascension (ASI):

• In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
• The station comes under the overall jurisdiction of the Commander British Forces South Atlantic Islands, an officer of one-star rank.
• Wideawake Airfield was a US installation built in 1943 by arrangement with the British government.
• The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
• The furthest airport from RAF Ascension (ASI) is Ujae Airport (UJE), which is nearly antipodal to RAF Ascension (meaning RAF Ascension is almost on the exact opposite side of the Earth from Ujae Airport), and is located 12,370 miles (19,907 kilometers) away in Ujae Atoll, Marshall Islands.

Facts about Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF):

• The Half Moon Bay Airport is located approximately 20 miles south of San Francisco.
• The airport hosts an annual benefit event in April, Pacific Coast Dream Machines, which features aircraft and automobiles.
• On 1 June 1945, the War Department issued a five year permit to the U.S.
• Because of Half Moon Bay AirportHalf Moon Bay Flight Strip's relatively low elevation of 66 feet, planes can take off or land at Half Moon Bay AirportHalf Moon Bay Flight Strip 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.
• Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF) currently has only 1 runway.
• The furthest airport from Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF) is Tôlanaro Airport (FTU), which is located 11,375 miles (18,307 kilometers) away in Tôlanaro, Madagascar.
• The closest airport to Half Moon Bay AirportHalf Moon Bay Flight Strip (HAF) is San Francisco International Airport (SFO), which is located only 10 miles (16 kilometers) NE of HAF.