Nonstop flight route between Grande Cache, Alberta, Canada and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Grande Cache Airport (YGC), Grande Cache, Alberta, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,660 miles (or 2,671 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 Grande Cache 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 Grande Cache Airport (YGC):

• In addition to being known as "Grande Cache Airport", another name for YGC is "CEQ5".
• Grande Cache Airport (YGC) currently has only 1 runway.
• Because of Grande Cache Airport's high elevation of 4,112 feet, planes must typically fly at a faster airspeed in order to takeoff or land at YGC. Combined with a high temperature, this could make YGC a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The furthest airport from Grande Cache Airport (YGC) is Tôlanaro Airport (FTU), which is located 10,312 miles (16,596 kilometers) away in Tôlanaro, Madagascar.
• The closest airport to Grande Cache Airport (YGC) is Hinton/Jasper-Hinton Airport (YJP), which is located 62 miles (99 kilometers) SE of YGC.

Facts about Henry Post Army Airfield (FSI):

• 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 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 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• 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.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.