Nonstop flight route between Circle Hot Springs, Alaska, United States and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Circle Hot Springs Airport (CHP), Circle Hot Springs, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 2,840 miles (or 4,571 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 Circle Hot Springs Airport and Henry Post Army Airfield, 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 Circle Hot Springs Airport and Henry Post Army Airfield. 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 Circle Hot Springs Airport (CHP):

• Circle Hot Springs Airport (CHP) currently has only 1 runway.
• The closest airport to Circle Hot Springs Airport (CHP) is Central Airport (CEM), which is located only 8 miles (13 kilometers) NW of CHP.
• The furthest airport from Circle Hot Springs Airport (CHP) is Port Elizabeth International Airport (PLZ), which is located 10,223 miles (16,452 kilometers) away in Port Elizabeth, South Africa.
• Because of Circle Hot Springs Airport's relatively low elevation of 956 feet, planes can take off or land at Circle Hot Springs 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.

Facts about Henry Post Army Airfield (FSI):

• Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
• 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.
• Post Field served as a base for flight training for the Air Service.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.