Nonstop flight route between Fort Sill, Oklahoma, United States and Westsound, Orcas Island, Washington, United States:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Westsound Seaplane Base (WSX), Westsound, Orcas Island, Washington, United States would travel a Great Circle distance of 1,582 miles (or 2,545 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 relatively short distance between Henry Post Army Airfield and Westsound Seaplane Base, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Henry Post Army Airfield (FSI):

• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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 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.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• Post Field served as a base for flight training for the Air Service.
• The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
• In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
• 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.

Facts about Westsound Seaplane Base (WSX):

• Because of Westsound Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Westsound 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.
• Westsound Seaplane Base (WSX) has 2 runways.
• The furthest airport from Westsound Seaplane Base (WSX) is Tôlanaro Airport (FTU), which is located 10,718 miles (17,249 kilometers) away in Tôlanaro, Madagascar.
• In addition to being known as "Westsound Seaplane Base", another name for WSX is "WA83".
• The closest airport to Westsound Seaplane Base (WSX) is Rosario Seaplane Base (RSJ), which is located only 4 miles (7 kilometers) ENE of WSX.