Nonstop flight route between Port Alexander, Alaska, United States and Ishigaki, Okinawa Prefecture, Japan:

About this route:

A direct, nonstop flight between Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States and Ishigaki Airport (ISG), Ishigaki, Okinawa Prefecture, Japan would travel a Great Circle distance of 5,240 miles (or 8,432 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 Port Alexander Seaplane Base and Ishigaki 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 Port Alexander Seaplane Base and Ishigaki 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 Port Alexander Seaplane Base (PTD):

• Port Alexander Seaplane Base (PTD) currently has only 1 runway.
• Port Alexander Seaplane Base has one seaplane landing area designated N/S which measures 3,000 by 300 feet.
• 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.
• In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".
• 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.

Facts about Ishigaki Airport (ISG):

• Because of Ishigaki Airport's relatively low elevation of 86 feet, planes can take off or land at Ishigaki 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 Ishigaki Airport (ISG) is Hateruma Airport (HTR), which is located 31 miles (50 kilometers) SW of ISG.
• The furthest airport from Ishigaki Airport (ISG) is Guaraní International Airport (AGT), which is nearly antipodal to Ishigaki Airport (meaning Ishigaki Airport is almost on the exact opposite side of the Earth from Guaraní International Airport), and is located 12,339 miles (19,858 kilometers) away in Ciudad del Este, Paraguay.
• The new airport has a 2,000 m runway, expandable to 2,500 m.
• Flight 611 of Southwest Air Lines is the only significant aircraft accident on record at Ishigaki Airport.
• Ishigaki Airport (ISG) currently has only 1 runway.
• Southwest Air Lines Flight 611 took off on runway 36 from Naha Airport on the island of Okinawa at 13:09 for a regular flight to Ishigaki Airport, Japan.
• In addition to being known as "Ishigaki Airport", other names for ISG include "石垣空港" and "Ishigaki Kūkō".