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Jeju City

$1,007+ Cheap flights from Seattle (SEA) to Jeju City (CJU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CJU
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
1 adult, Economy
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Find cheap flights from Seattle to Jeju City with Cheapflights

1. Tell us where you want to go

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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 March 17, 2026.

This FlightHub deal was found by Cheapflights users on 3/12. 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.
Mon 12/2812:10 am
SEA
-
CJU
1 stop17h 50m
Asiana Airlines
Sat 1/98:50 pm
CJU
-
SEA
1 stop34h 05m
Asiana Airlines
Deal found 3/12$1,027
This Asiana Airlines deal was found by Cheapflights users on 3/12. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2912:10 am
SEA
-
CJU
1 stop20h 30m
Asiana Airlines
Sun 1/108:40 pm
CJU
-
SEA
1 stop34h 15m
Asiana Airlines
Deal found 3/12$1,055
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2912:10 am
SEA
-
CJU
1 stop16h 45m
Asiana Airlines
Sat 1/98:50 pm
CJU
-
SEA
1 stop34h 05m
Asiana Airlines
Deal found 3/12$1,094
This Korean Air deal was found by Cheapflights users on 3/12. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2611:00 am
SEA
-
CJU
1 stop16h 00m
Korean Air
Tue 1/129:50 am
CJU
-
SEA
1 stop16h 10m
Korean Air
Deal found 3/12$1,132
This Korean Air deal was found by Cheapflights users on 3/12. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/262:30 pm
SEA
-
CJU
2 stops26h 35m
Korean Air
Mon 1/1112:00 pm
CJU
-
SEA
1 stop14h 00m
Korean Air
Deal found 3/12$1,137
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Tue 4/281:15 am
SEA
-
CJU
1 stop36h 55m
Multiple Airlines
Wed 5/610:40 pm
CJU
-
SEA
1 stop33h 30m
Multiple Airlines
Deal found 3/15$1,180
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Mon 4/271:15 am
SEA
-
CJU
1 stop24h 15m
Multiple Airlines
Tue 5/510:30 am
CJU
-
SEA
1 stop21h 40m
Multiple Airlines
Deal found 3/13$1,218
This Asiana Airlines deal was found by Cheapflights users on 3/12. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2512:10 am
SEA
-
CJU
1 stop17h 50m
Asiana Airlines
Sun 1/108:40 pm
CJU
-
SEA
1 stop34h 15m
Asiana Airlines
Deal found 3/12$1,229
This FlightHub deal was found by Cheapflights users on 3/15. 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 8/1810:15 am
SEA
-
CJU
1 stop53h 10m
Singapore Airlines
Wed 8/269:30 am
CJU
-
SEA
1 stop39h 15m
Singapore Airlines
Deal found 3/15$1,248
This China Eastern deal was found by Cheapflights users on 3/13. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:35 am
SEA
-
CJU
2 stops36h 55m
China Eastern
Thu 4/237:10 pm
CJU
-
SEA
2 stops39h 16m
China Eastern
Deal found 3/13$1,268

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 March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,180
(Kiwi.com)
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 March 17, 2026.
Use the filters below to find and compare flights from Seattle to Jeju City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 4/28

12:55 am-2:00 pm

2 stops21h 05m

Jeju City

Wed 5/6

10:40 pm-4:10 pm

1 stop33h 30m

$1,199
Quickest round-trip

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 4/27

1:15 am-5:30 pm

1 stop24h 15m

Jeju City

Tue 5/5

10:30 am-4:10 pm

1 stop21h 40m

$1,218

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 4/19

7:35 am-12:30 pm

2 stops36h 55m

Jeju City

Thu 4/23

7:10 pm-6:26 pm

2 stops39h 16m

$1,268

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 4/2

12:50 pm-2:30 pm

1 stop33h 40m

Jeju City

Tue 4/7

10:25 am-10:40 am

1 stop16h 15m

$1,603

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 4/6

5:40 am-9:35 pm

2 stops23h 55m

Jeju City

Thu 4/9

6:55 pm-2:55 pm

3 stops36h 00m

$2,116

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 3/28

7:15 am-6:10 pm

2 stops42h 55m

Jeju City

Wed 4/1

4:00 pm-5:09 pm

2 stops41h 09m

$2,183

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 4/28

7:35 am-12:30 pm

2 stops36h 55m

Jeju City

Tue 5/5

7:10 pm-6:26 pm

2 stops39h 16m

$2,490
Cheapest one-way
Quickest one-way

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 7/4

12:25 pm-6:30 am

1 stop26h 05m

$1,007

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Sorted by cheapest first

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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Jeju City flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

  • How long is the flight from Seattle to Jeju City?

    Departing from Seattle to Jeju City will take you 33h 40m. There are 5406 mi between Seattle and Jeju City. This flight may include one or multiple stops.

  • 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.

See more FAQs

Traveling to a place near Jeju City?

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