Nonstop flight route between Fort Sill, Oklahoma, United States and Ube, Yamaguchi Prefecture, Japan:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Yamaguchi Ube Airport (UBJ), Ube, Yamaguchi Prefecture, Japan would travel a Great Circle distance of 6,712 miles (or 10,801 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 Henry Post Army Airfield and Yamaguchi Ube 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 Henry Post Army Airfield and Yamaguchi Ube 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 Henry Post Army Airfield (FSI):

• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• 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.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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.

Facts about Yamaguchi Ube Airport (UBJ):

• The furthest airport from Yamaguchi Ube Airport (UBJ) is Rio Grande Regional Airport (RIG), which is nearly antipodal to Yamaguchi Ube Airport (meaning Yamaguchi Ube Airport is almost on the exact opposite side of the Earth from Rio Grande Regional Airport), and is located 12,200 miles (19,634 kilometers) away in Rio Grande, Brazil.
• In addition to being known as "Yamaguchi Ube Airport", other names for UBJ include "山口宇部空港" and "Yamaguchi Ube Kūkō".
• Because of Yamaguchi Ube Airport's relatively low elevation of 15 feet, planes can take off or land at Yamaguchi Ube 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 Yamaguchi Ube Airport (UBJ) is Kokura Airport (KKJ), which is located 20 miles (32 kilometers) WSW of UBJ.
• Yamaguchi Ube Airport (UBJ) currently has only 1 runway.