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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Shonai Airport (SYO), Yamagata, Japan would travel a Great Circle distance of 6,145 miles (or 9,890 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 Shonai 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 Shonai 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):

• 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 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.
• 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.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.

Facts about Shonai Airport (SYO):

• The furthest airport from Shonai Airport (SYO) is Rio Grande Regional Airport (RIG), which is located 11,620 miles (18,701 kilometers) away in Rio Grande, Brazil.
• Because of Shonai Airport's relatively low elevation of 72 feet, planes can take off or land at Shonai 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.
• Seiko Epson has also used the airport for weekly employee charter flights to and from Matsumoto since 1997.
• Shonai Airport (SYO) currently has only 1 runway.
• In addition to being known as "Shonai Airport", other names for SYO include "庄内空港" and "Shonai Kūkō".
• The closest airport to Shonai Airport (SYO) is Yamagata Airport (GAJ), which is located 42 miles (67 kilometers) SE of SYO.