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):

• The airport is undergoing resurfacing of its runway.
• On 7 November 1971 the first Boeing 747 landing took place, the Boeing 747-200B was operated by Condor was carrying German tourists from Frankfurt.
• Bandaranaike International Airport handled 7,328,798 passengers last year.
• 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.
• On 7 May 2007 the Sri Lankan Government decided to shift some military aviation operations out of the space adjoining the airport to SLAF Hingurakgoda, thus paving the way for more civilian operations.
• In addition to being known as "Bandaranaike International Airport", another name for CMB is "බණ්ඩාරනායක ජාත්‍යන්තර ගුවන්තොටුපළபண்டாரநாயக்க பன்னாட்டு விமான நிலையம்".
• The second stage will involve the acquisition of 600 hectares of public land, the construction of a runway capable of accommodating new-generation airplanes, an aircraft repair and maintenance center, an arrival and a departure terminal, a shopping arcade, a cargo complex connected to the airport by rail and a multistory car park.
• 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.
• Bandaranaike International Airport (CMB) currently has only 1 runway.
• The closest airport to Bandaranaike International Airport (CMB) is Ratmalana Airport (RML), which is located 25 miles (40 kilometers) S of CMB.
• Bandaranaike International Airport at Katunayake, Sri Lanka, is 30 kilometers north of the island nation's capital of Colombo.

Facts about Seattle–Tacoma International Airport (SEA):

• Residents of the surrounding area filed lawsuits against the Port in the early 1970s, complaining of noise, vibration, smoke, and other problems.
• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• 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.
• 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.
• Seattle–Tacoma International Airport (SEA) has 3 runways.
• The airport is also served both by the King County Metro bus system and Sound Transit regional express buses.
• Interstate 5 and its offshoot Interstate 405 intersect very close to the airport, and most people use private vehicles to arrive at the airport.
• Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
• The three parallel runways run nearly north–south, west of the passenger terminal, and are 8,500 to 11,900 feet long.
• 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.