Nonstop flight route between Hyder, Alaska, United States and Ratmalana, Sri Lanka:

About this route:

A direct, nonstop flight between Hyder Seaplane Base (WHD), Hyder, Alaska, United States and Ratmalana Airport (RML), Ratmalana, Sri Lanka would travel a Great Circle distance of 7,780 miles (or 12,520 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 Hyder Seaplane Base and Ratmalana 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 Hyder Seaplane Base and Ratmalana 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 Hyder Seaplane Base (WHD):

• In addition to being known as "Hyder Seaplane Base", another name for WHD is "4Z7".
• Because of Hyder Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hyder Seaplane Base 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.
• Hyder Seaplane Base (WHD) currently has only 1 runway.
• Hyder Seaplane Base has one seaplane landing area designated N/S with a water surface measuring 10,000 by 1,000 feet.
• The closest airport to Hyder Seaplane Base (WHD) is Stewart Aerodrome (ZST), which is located only 2 miles (4 kilometers) NNE of WHD.
• There are two floats for seaplanes, one along the shoreline and another within a protected cove with a concrete launch ramp.
• The furthest airport from Hyder Seaplane Base (WHD) is Port Alfred Airport (AFD), which is located 10,540 miles (16,962 kilometers) away in Port Alfred, South Africa.

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.
• 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.
• 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 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.
• 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 airport is much closer to the Colombo city center compared to the larger Bandaranaike International Airport which is 32 km north of the city.
• Ratmalana Airport (RML) currently has only 1 runway.