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

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport (YSY), Sachs Harbour, Northwest Territories, Canada would travel a Great Circle distance of 2,754 miles (or 4,432 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 Sachs Harbour (David Nasogaluak Jr. Saaryuaq) 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 Sachs Harbour (David Nasogaluak Jr. Saaryuaq) 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):

• Post Field served as a base for flight training for the Air Service.
• 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
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.

Facts about Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport (YSY):

• The closest airport to Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport (YSY) is Paulatuk (Nora Aliqatchialuk Ruben) Airport (YPC), which is located 184 miles (296 kilometers) S of YSY.
• Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport (YSY) currently has only 1 runway.
• The furthest airport from Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport (YSY) is Teniente Rodolfo Marsh Airport (TNM), which is located 9,780 miles (15,739 kilometers) away in Villa Las Estrellas, Antarctica.
• Because of Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport's relatively low elevation of 283 feet, planes can take off or land at Sachs Harbour (David Nasogaluak Jr. Saaryuaq) 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.