Nonstop flight route between SeaTac (near Seattle and Tacoma), Washington, United States and Incheon (near Seoul), South Korea:
Departure Airport:

Arrival Airport:

Distance from SEA to ICN:
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- About this route
- SEA Airport Information
- ICN Airport Information
- Facts about SEA
- Facts about ICN
- 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 ICN
- List of Nearest Airports to ICN
- Map of Furthest Airports from ICN
- List of Furthest Airports from ICN
About this route:
A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Incheon International Airport (ICN), Incheon (near Seoul), South Korea would travel a Great Circle distance of 5,204 miles (or 8,374 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 Incheon 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 Seattle–Tacoma International Airport and Incheon International Airport. 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: | ICN / RKSI |
Airport Names: |
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Location: | Incheon (near Seoul), South Korea |
GPS Coordinates: | 37°27'47"N by 126°26'23"E |
Area Served: | Seoul Metro Area |
Operator/Owner: | Government of the Republic of Korea |
Airport Type: | Public |
Elevation: | 23 feet (7 meters) |
# of Runways: | 3 |
View all routes: | Routes from ICN |
More Information: | ICN Maps & Info |
Facts about Seattle–Tacoma International Airport (SEA):
- The two-story North Concourse added four new gate positions and a new wing 600 feet long and 30 feet wide.
- 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.
- A recurring problem at the airport is misidentification of the westernmost taxiway, Taxiway Tango, as a runway.
- 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 handled 34,776,666 passengers last year.
- Seattle–Tacoma International Airport (SEA) has 3 runways.
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
- 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.
- 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 Incheon International Airport (ICN):
- Plans to invest ₩4 trillion by 2017 to expand Incheon International Airport.
- Seoul Incheon International Airport's terminal has 76 boarding gates altogether, with 44 in the main terminal and 30 in Concourse A.
- In addition to being known as "Incheon International Airport", other names for ICN include "인천국제공항 仁川國際空港" and "Incheon Gukje Gonghang Inch'ŏn Kukche Konghang".
- The furthest airport from Incheon International Airport (ICN) is Villa Gesell Airport (VLG), which is nearly antipodal to Incheon International Airport (meaning Incheon International Airport is almost on the exact opposite side of the Earth from Villa Gesell Airport), and is located 12,246 miles (19,707 kilometers) away in Villa Gesell, Buenos Aires, Argentina.
- Because of Incheon International Airport's relatively low elevation of 23 feet, planes can take off or land at Incheon 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.
- Incheon International Airport handled 41,482,828 passengers last year.
- Incheon International Airport (ICN) has 3 runways.
- The closest airport to Incheon International Airport (ICN) is Gimpo International Airport (GMP), which is located 20 miles (33 kilometers) ENE of ICN.
- The main passenger terminal is the largest airport terminal in area in South Korea.