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

Arrival Airport:

Distance from SEA to CJU:
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- About this route
- SEA Airport Information
- CJU Airport Information
- Facts about SEA
- Facts about CJU
- 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 CJU
- List of Nearest Airports to CJU
- Map of Furthest Airports from CJU
- List of Furthest Airports from CJU
About this route:
A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Jeju International Airport (CJU), Jeju, South Korea would travel a Great Circle distance of 5,410 miles (or 8,706 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 Jeju 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 Jeju 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: |
|
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: | CJU / RKPC |
Airport Names: |
|
Location: | Jeju, South Korea |
GPS Coordinates: | 33°30'41"N by 126°29'35"E |
Area Served: | Jeju Island |
Operator/Owner: | Korea Airports Corporation |
Airport Type: | Public |
Elevation: | 118 feet (36 meters) |
# of Runways: | 2 |
View all routes: | Routes from CJU |
More Information: | CJU Maps & Info |
Facts about Seattle–Tacoma International Airport (SEA):
- Seattle–Tacoma International Airport (SEA) has 3 runways.
- 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.
- 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 airport has a Central Terminal building, which was renovated and expanded in 2003.
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
- Interstate 5 and its offshoot Interstate 405 intersect very close to the airport, and most people use private vehicles to arrive at the 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.
- After the death of U.S.
- The airport has service to destinations throughout North America, Europe, the Middle East, and East Asia.
- Residents of the surrounding area filed lawsuits against the Port in the early 1970s, complaining of noise, vibration, smoke, and other problems.
- 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.
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
Facts about Jeju International Airport (CJU):
- The furthest airport from Jeju International Airport (CJU) is Treinta y Tres Airport (TYT), which is nearly antipodal to Jeju International Airport (meaning Jeju International Airport is almost on the exact opposite side of the Earth from Treinta y Tres Airport), and is located 12,384 miles (19,929 kilometers) away in Treinta y Tres, Treinta y Tres, Uruguay.
- The closest airport to Jeju International Airport (CJU) is Jeongseok / Jungseok Airport (JDG), which is located only 15 miles (24 kilometers) ESE of CJU.
- Jeju International Airport (CJU) has 2 runways.
- Because of Jeju International Airport's relatively low elevation of 118 feet, planes can take off or land at Jeju 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 addition to being known as "Jeju International Airport", other names for CJU include "제주국제공항 濟州國際空港", "Jeju Gukje Gonghang" and "Cheju Kukche Konghang".
- Jeju International Airport serves many mainland destinations in South Korea, as well as international destinations in China, Hong Kong, Japan, and Taiwan.
- Jeju International Airport handled 20,055,238 passengers last year.