Nonstop flight route between SeaTac (near Seattle and Tacoma), Washington, United States and Teresina, Piauí, Brazil:

About this route:

A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Teresina–Senador Petrônio Portella Airport (THE), Teresina, Piauí, Brazil would travel a Great Circle distance of 5,989 miles (or 9,638 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 Seattle–Tacoma International Airport and Teresina–Senador Petrônio Portella 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 Seattle–Tacoma International Airport and Teresina–Senador Petrônio Portella 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 Seattle–Tacoma International Airport (SEA):

• Starting in the late 1980s, the Port of Seattle and a council representing local county governments considered the future of air traffic in the region and predicted that airport could reach capacity by 2000.
• Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
• Seattle–Tacoma International Airport (SEA) has 3 runways.
• There is also a scheduled bus service to downtown Vancouver, Canada, through Quick Shuttle, with other pick-up stops at downtown Seattle, Bellingham International Airport, and drop-off stops just inside the Canadian–U.S.
• In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
• 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 airport was constructed by the Port of Seattle in 1944 to serve civilians of the region, after the U.S.
• 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.
• A recurring problem at the airport is misidentification of the westernmost taxiway, Taxiway Tango, as a runway.
• 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.

Facts about Teresina–Senador Petrônio Portella Airport (THE):

• The airport underwent major renovations between 1998 and 2001, including the passenger terminal, runway and the construction of a new control tower.
• The closest airport to Teresina–Senador Petrônio Portella Airport (THE) is Barreirinhas Airport (BRB), which is located 159 miles (256 kilometers) N of THE.
• Teresina–Senador Petrônio Portella Airport (THE) currently has only 1 runway.
• Because of Teresina–Senador Petrônio Portella Airport's relatively low elevation of 219 feet, planes can take off or land at Teresina–Senador Petrônio Portella 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.
• Teresina–Senador Petrônio Portella Airport handled 1,091,242 passengers last year.
• In addition to being known as "Teresina–Senador Petrônio Portella Airport", another name for THE is "Aeroporto de Teresina–Senador Petrônio Portella".
• The furthest airport from Teresina–Senador Petrônio Portella Airport (THE) is Roman Tmetuchl International Airport (ROR), which is nearly antipodal to Teresina–Senador Petrônio Portella Airport (meaning Teresina–Senador Petrônio Portella Airport is almost on the exact opposite side of the Earth from Roman Tmetuchl International Airport), and is located 12,196 miles (19,627 kilometers) away in Koror, Palau.