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):

• During the Second World War it was used as a Royal Air Force base, with No 30 Squadron flying Hawker Hurricanes from there against Japanese Navy aircraft.
• The airport is much closer to the Colombo city center compared to the larger Bandaranaike International Airport which is 32 km north of the city.
• In addition to being known as "Ratmalana Airport", another name for RML is "රත්මලාන ගුවන්තොටුපළஇரத்மலானை விமான நிலைய".
• 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.
• Ratmalana Airport (RML) currently has only 1 runway.
• 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.
• In the 1950s, BOAC flew Canadair Argonauts from Ratmalana to London.
• 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.
• The closest airport to Ratmalana Airport (RML) is Bandaranaike International Airport (CMB), which is located 25 miles (40 kilometers) N of RML.

Facts about Henry Post Army Airfield (FSI):

• 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.
• Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• Post Field served as a base for flight training for the Air Service.
• 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.
• 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.
• 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.