Nonstop flight route between Colombo, Sri Lanka and SeaTac (near Seattle and Tacoma), Washington, United States:

About this route:

A direct, nonstop flight between Bandaranaike International Airport (CMB), Colombo, Sri Lanka and Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States would travel a Great Circle distance of 8,426 miles (or 13,560 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 Bandaranaike International Airport and Seattle–Tacoma International 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 Bandaranaike International Airport and Seattle–Tacoma International 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 Bandaranaike International Airport (CMB):

• Bandaranaike International Airport handled 7,328,798 passengers last year.
• Bandaranaike International Airport (CMB) currently has only 1 runway.
• The airport is undergoing resurfacing of its runway.
• A new split-level passenger terminal building which separates arrivals and departures vertically, a new pier with eight boarding gates and 14 passenger boarding bridges with a dedicated gate comprising two passenger boarding bridges for the operations of the new Airbus A380, will be included in the proposed new complex.
• As part of the airport development program, a passenger train service was launched between the Airport and Colombo Secretariat Station, in June 2010.
• Because of Bandaranaike International Airport's relatively low elevation of 26 feet, planes can take off or land at Bandaranaike International 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 1964 Anil Moonesinghe, the Cabinet Minister of Communications, started the building of a new international airport to replace Ratmalana, with Canadian aid.
• The furthest airport from Bandaranaike International Airport (CMB) is Seymour Airport (GPS), which is located 11,614 miles (18,691 kilometers) away in Baltra Island, Galápagos Islands, Ecuador.
• In addition to being known as "Bandaranaike International Airport", another name for CMB is "බණ්ඩාරනායක ජාත්‍යන්තර ගුවන්තොටුපළபண்டாரநாயக்க பன்னாட்டு விமான நிலையம்".
• Bandaranaike International Airport at Katunayake, Sri Lanka, is 30 kilometers north of the island nation's capital of Colombo.
• The closest airport to Bandaranaike International Airport (CMB) is Ratmalana Airport (RML), which is located 25 miles (40 kilometers) S of CMB.

Facts about Seattle–Tacoma International Airport (SEA):

• Seattle–Tacoma International Airport (SEA) has 3 runways.
• A recurring problem at the airport is misidentification of the westernmost taxiway, Taxiway Tango, as a runway.
• Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma International 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.
• The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
• The April 1957 OAG shows 216 departures a week on United, 80 Northwest, 35 Western, 21 Trans-Canada, 20 Pan Am, 20 Pacific Northern, and 10 Alaska.
• Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• In 2007 the airport, together with the University of Illinois Center of Excellence for Airport Technology, became the first airport to implement an avian radar system providing 24-hour monitoring of wildlife activity across the airfield.
• The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
• A 23-acre rental car facility opened on May 17, 2012.
• In 2013, the airport served over 34.7 million passengers, making it the 15th-busiest airport in the United States.
• The three parallel runways run nearly north–south, west of the passenger terminal, and are 8,500 to 11,900 feet long.