Nonstop flight route between Fort Sill, Oklahoma, United States and Galle, Sri Lanka:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Koggala Airport (KCT), Galle, Sri Lanka would travel a Great Circle distance of 9,627 miles (or 15,494 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 Koggala 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 Koggala 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):

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

Facts about Koggala Airport (KCT):

• Meanwhile, the tarmac surface of the land runway was developed.
• The closest airport to Koggala Airport (KCT) is Mattala Rajapaksa International Airport (HRI), which is located 59 miles (95 kilometers) ENE of KCT.
• The furthest airport from Koggala Airport (KCT) is Seymour Airport (GPS), which is located 11,683 miles (18,802 kilometers) away in Baltra Island, Galápagos Islands, Ecuador.
• In addition to being known as "Koggala Airport", another name for KCT is "කොග්ගල ගුවන්තොටුපළ".
• Because of Koggala Airport's relatively low elevation of 10 feet, planes can take off or land at Koggala 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.
• QEA and Imperial Airways flew Consolidated PBY Catalina flying boats from Koggala lake to the Swan River at Perth, on what was at the time the world's longest non-stop air route.