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

About this route:

A direct, nonstop flight between Ratmalana Airport (RML), Ratmalana, Sri Lanka and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 9,569 miles (or 15,400 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 Ratmalana 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 Ratmalana 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 Ratmalana Airport (RML):

• In 1934 the State Council of Ceylon made a decision to construct an aerodrome within reach of the capital city of Colombo and decided on Ratmalana as the best site.
• Because of Ratmalana Airport's relatively low elevation of 16 feet, planes can take off or land at Ratmalana 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.
• On 11 August 1952, 3 months after the inaugural service of a passenger jet aircraft, BOAC began its Comet service between Colombo and London.
• The closest airport to Ratmalana Airport (RML) is Bandaranaike International Airport (CMB), which is located 25 miles (40 kilometers) N of RML.
• Ratmalana Airport (RML) currently has only 1 runway.
• The furthest airport from Ratmalana Airport (RML) is Seymour Airport (GPS), which is located 11,628 miles (18,713 kilometers) away in Baltra Island, Galápagos Islands, Ecuador.
• In 2012, plans were drawn to relaunch Ratmalana as an international airport, to act as a secondary airport for the city.
• Ratmalana airport at one time had the country's main air terminal, with the Douglas DC-3 Dakota and Lockheed Constellation aeroplanes of Air Ceylon flying out of it.
• In addition to being known as "Ratmalana Airport", another name for RML is "රත්මලාන ගුවන්තොටුපළஇரத்மலானை விமான நிலைய".

Facts about Henry Post Army Airfield (FSI):

• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• 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.
• 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.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• 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.
• With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
• 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.