Nonstop flight route between SeaTac (near Seattle and Tacoma), Washington, United States and Tromsø, Norway:
Departure Airport:

Arrival Airport:

Distance from SEA to TOS:
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- About this route
- SEA Airport Information
- TOS Airport Information
- Facts about SEA
- Facts about TOS
- Map of Nearest Airports to SEA
- List of Nearest Airports to SEA
- Map of Furthest Airports from SEA
- List of Furthest Airports from SEA
- Map of Nearest Airports to TOS
- List of Nearest Airports to TOS
- Map of Furthest Airports from TOS
- List of Furthest Airports from TOS
About this route:
A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Tromsø Airport, Langnes (TOS), Tromsø, Norway would travel a Great Circle distance of 4,110 miles (or 6,614 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 Tromsø Airport, Langnes, 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 Tromsø Airport, Langnes. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SEA / KSEA |
Airport Names: |
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Location: | SeaTac (near Seattle and Tacoma), Washington, United States |
GPS Coordinates: | 47°26'56"N by 122°18'33"W |
Area Served: | Seattle; Tacoma, Washington, US |
Airport Type: | Public |
Elevation: | 433 feet (132 meters) |
# of Runways: | 3 |
View all routes: | Routes from SEA |
More Information: | SEA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | TOS / ENTC |
Airport Names: |
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Location: | Tromsø, Norway |
GPS Coordinates: | 69°40'53"N by 18°55'4"E |
Area Served: | Tromsø, Norway |
Airport Type: | Public |
Elevation: | 32 feet (10 meters) |
# of Runways: | 1 |
View all routes: | Routes from TOS |
More Information: | TOS Maps & Info |
Facts about Seattle–Tacoma International Airport (SEA):
- 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.
- In 2013, the airport served over 34.7 million passengers, making it the 15th-busiest airport in the United States.
- Citing increased landing fees and other costs due to the aforementioned work at the airport, Southwest Airlines threatened in 2005 to move to nearby Boeing Field.
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
- 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.
- The two-story North Concourse added four new gate positions and a new wing 600 feet long and 30 feet wide.
- Seattle–Tacoma International Airport (SEA) has 3 runways.
- Seattle's Central Link light-rail line serves the airport at the SeaTac/Airport Station, which opened on December 19, 2009.
- 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.
Facts about Tromsø Airport, Langnes (TOS):
- Tromsø Airport, Langnes is situated at Langnes, on the western side of the island of Tromsøya in Tromsø, 1.7 nautical miles northwest of the city centre, which is on the eastern side of the island.
- Because of Tromsø Airport, Langnes's relatively low elevation of 32 feet, planes can take off or land at Tromsø Airport, Langnes 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.
- Tromsø Airport, Langnes (TOS) currently has only 1 runway.
- The closest airport to Tromsø Airport, Langnes (TOS) is Bardufoss Airport (BDU), which is located 44 miles (71 kilometers) SSW of TOS.
- The furthest airport from Tromsø Airport, Langnes (TOS) is Chatham Islands (CHT), which is located 10,570 miles (17,010 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- There are also some seasonal charter flights to the Mediterranean operated from Tromsø Airport.
- The original terminal was replaced by a newer building, shaped like a semicircle, in 1977.
- Tromsø Airport, Langnes handled 1,723,465 passengers last year.
- In addition to being known as "Tromsø Airport, Langnes", another name for TOS is "Tromsø lufthavn, Langnes".