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Jeju City

$865+ Cheap flights from Seattle (SEA) to Jeju City (CJU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CJU
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap flight deals from Seattle to Jeju City

Cheapest flights from Seattle to Jeju City
Explore the most affordable flight options available from Seattle to Jeju City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

This FlightHub deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/168:45 amSEA - CJU
1 stop53h 35mSingapore Airlines
Wed 12/248:55 amCJU - SEA
1 stop39h 15mSingapore Airlines
Deal found 12/12$2,341
This oojo deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1512:10 amSEA - CJU
2 stops42h 25mMultiple Airlines
Wed 12/2410:25 pmCJU - SEA
2 stops36h 45mMultiple Airlines
Deal found 12/12$2,861
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:10 amSEA - CJU
1 stop36h 55mMultiple Airlines
Tue 1/610:40 pmCJU - SEA
2 stops56h 05mMultiple Airlines
Deal found 12/14$6,354

Find flight deals from Seattle to Jeju City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Jeju City (CJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$865
(Mytrip)
Provider with most accurate pricing for Seattle/Tacoma Intl-Jeju City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Jeju City flights.
Search Deals
From Seattle/Tacoma Intl to Jeju City
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Jeju City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 14, 2025.
Use the filters below to find and compare flights from Seattle to Jeju City that are best for you.

Fly from

Seattle

Fly to

Jeju City

Route

Depart

Return

Price

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 1/26

12:10 am-7:10 pm

2 stops26h 00m

Jeju City

Tue 2/3

8:00 pm-1:55 pm

2 stops34h 55m

$865

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 1/25

12:10 am-7:10 pm

2 stops26h 00m

Jeju City

Mon 2/2

7:55 am-10:06 pm

2 stops31h 11m

$1,011

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Wed 2/11

12:10 am-6:40 am

2 stops37h 30m

Jeju City

Thu 2/26

10:50 am-6:10 pm

1 stop24h 20m

$1,317

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 2/12

8:45 am-6:55 pm

1 stop41h 10m

Jeju City

Thu 2/26

7:55 pm-7:10 am

1 stop28h 15m

$1,842

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 2/12

7:10 am-12:50 pm

2 stops36h 40m

Jeju City

Thu 2/26

1:50 pm-2:44 pm

2 stops41h 54m

$2,476

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 12/25

12:10 am-6:05 am

1 stop36h 55m

Jeju City

Tue 1/6

10:40 pm-1:45 pm

2 stops56h 05m

$6,354

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Compare providers for flights from Seattle to Jeju City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Jeju City in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Jeju City flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Jeju City flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Jeju City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Jeju City flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Jeju City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Jeju City

Have a flexible travel schedule? Discover the best time to fly to Jeju City from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Jeju City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Seattle to Jeju City that include hotel bookings?

    Yes. In addition to deals on Seattle to Jeju City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Jeju City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Jeju City.

  • Can I find deals for business class flights from Seattle to Jeju City?

    Yes. Cheapflights offers flight deals from Seattle to Jeju City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Traveling to a place near Jeju City?

Book flights to Jeju City if you plan to visit one of these locations
Seogwipo

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