Nonstop flight route between Metlakatla, Annette Island, Alaska, United States and Zhoushan, Zhejiang, China:

About this route:

A direct, nonstop flight between Metlakatla Seaplane Base (MTM), Metlakatla, Annette Island, Alaska, United States and Zhoushan Putuoshan Airport (HSN), Zhoushan, Zhejiang, China would travel a Great Circle distance of 5,126 miles (or 8,250 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 Metlakatla Seaplane Base and Zhoushan Putuoshan 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 Metlakatla Seaplane Base and Zhoushan Putuoshan 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 Metlakatla Seaplane Base (MTM):

• Because of Metlakatla Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Metlakatla 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.
• Metlakatla Seaplane Base is a state owned, public use seaplane base located in Metlakatla, a community on Annette Island in the Prince of Wales-Hyder Census Area of the U.S.
• The closest airport to Metlakatla Seaplane Base (MTM) is Annette Island Airport (ANN), which is located only 6 miles (10 kilometers) S of MTM.
• Metlakatla Seaplane Base (MTM) has 2 runways.
• The furthest airport from Metlakatla Seaplane Base (MTM) is Port Alfred Airport (AFD), which is located 10,621 miles (17,093 kilometers) away in Port Alfred, South Africa.

Facts about Zhoushan Putuoshan Airport (HSN):

• The closest airport to Zhoushan Putuoshan Airport (HSN) is Ningbo Lishe International Airport (NGB), which is located 54 miles (88 kilometers) W of HSN.
• The furthest airport from Zhoushan Putuoshan Airport (HSN) is Monte Caseros Airport (MCS), which is nearly antipodal to Zhoushan Putuoshan Airport (meaning Zhoushan Putuoshan Airport is almost on the exact opposite side of the Earth from Monte Caseros Airport), and is located 12,413 miles (19,977 kilometers) away in Monte Caseros, Corrientes, Argentina.
• The runway was originally designed to be long enough to land 747s, which require around 10,000' length for take-off by 130' width.
• At the end of the day the runway length was held to 8,200 which is too short for fully laden 747's to take off safely although it could be extended at sometime in the future if this was ever required.
• In addition to being known as "Zhoushan Putuoshan Airport", other names for HSN include "舟山普陀山机场" and "Zhōushān Pǔtuóshān Jīchǎng".
• Across the entire site which was about 3,200m x 400m, a matrix of 150mm perforated iron pipes at 10m centers in both directions was installed vertically, in a manner that allowed the Chinese to pour water and sand down the pipes to help with the compacting.