Nonstop flight route between Yonaguni, Okinawa, Japan and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Yonaguni Airport (OGN), Yonaguni, Okinawa, Japan and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 7,534 miles (or 12,125 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 Yonaguni Airport and Henry Post Army Airfield, 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 Yonaguni Airport and Henry Post Army Airfield. 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 Yonaguni Airport (OGN):

• Because of Yonaguni Airport's relatively low elevation of 49 feet, planes can take off or land at Yonaguni 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.
• Yonaguni Airport (OGN) currently has only 1 runway.
• In addition to being known as "Yonaguni Airport", other names for OGN include "Yonaguni Jima Airport", "与那国空港" and "Yonaguni Kūkō".
• The furthest airport from Yonaguni Airport (OGN) is Silvio Pettirossi International Airport (ASU), which is nearly antipodal to Yonaguni Airport (meaning Yonaguni Airport is almost on the exact opposite side of the Earth from Silvio Pettirossi International Airport), and is located 12,375 miles (19,916 kilometers) away in Asunción, Paraguay.
• The closest airport to Yonaguni Airport (OGN) is Hateruma Airport (HTR), which is located 59 miles (95 kilometers) ESE of OGN.

Facts about Henry Post Army Airfield (FSI):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
• With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
• The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
• The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.