Nonstop flight route between Fort Simpson, Northwest Territories, Canada and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Fort Simpson Airport (YFS), Fort Simpson, Northwest Territories, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 2,123 miles (or 3,417 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 Fort Simpson Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Fort Simpson Airport (YFS):

• The closest airport to Fort Simpson Airport (YFS) is Wrigley Airport (YWY), which is located 122 miles (197 kilometers) NW of YFS.
• Because of Fort Simpson Airport's relatively low elevation of 556 feet, planes can take off or land at Fort Simpson 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.
• Fort Simpson Airport (YFS) currently has only 1 runway.
• The furthest airport from Fort Simpson Airport (YFS) is Port Alfred Airport (AFD), which is located 10,037 miles (16,152 kilometers) away in Port Alfred, South Africa.

Facts about Henry Post Army Airfield (FSI):

• 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.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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 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.