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Jeju City

$675+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CJU
Jul 20 — Jul 271
Mon 7/20
Mon 7/27
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 June 20, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Sat 10/1711:00 am
SEA
-
CJU
2 stops28h 20m
Multiple Airlines
Sat 10/3112:05 pm
CJU
-
SEA
1 stop23h 05m
Multiple Airlines
Deal found 6/16$1,407
This Trip.com deal was found by Cheapflights users on 6/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:25 pm
SEA
-
CJU
1 stop26h 05m
Cathay Pacific
Tue 7/217:30 am
CJU
-
SEA
1 stop18h 50m
Cathay Pacific
Deal found 6/17$1,411
This Mytrip deal was found by Cheapflights users on 6/17. 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 7/1412:10 am
SEA
-
CJU
2 stops23h 35m
Multiple Airlines
Tue 7/217:25 am
CJU
-
SEA
2 stops19h 35m
Multiple Airlines
Deal found 6/17$1,506
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Sat 12/1212:40 pm
SEA
-
CJU
2 stops25h 00m
Multiple Airlines
Sat 12/1912:05 pm
CJU
-
SEA
1 stop20h 00m
Multiple Airlines
Deal found 6/20$1,569
This KAYAK deal was found by Cheapflights users on 6/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:25 pm
SEA
-
CJU
1 stop26h 05m
Cathay Pacific
Wed 8/267:30 am
CJU
-
SEA
1 stop18h 50m
Cathay Pacific
Deal found 6/20$1,640

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 June 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,407
(Kiwi.com)

One-way from

$675
(Kiwi.com)
Provider with most accurate pricing for Seattle/Tacoma Intl-Jeju City flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Jeju City flights.
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From Seattle/Tacoma Intl to Jeju City
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One-way flight from Seattle/Tacoma Intl to Jeju City
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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 June 20, 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
Quickest round-trip

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Wed 7/15

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

Tue 7/21

7:30 am-10:20 am

1 stop18h 50m

$1,411

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 10/16

12:10 am-10:30 pm

2 stops30h 20m

Jeju City

Sat 10/31

7:55 am-7:10 pm

2 stops27h 15m

$1,462

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Wed 7/15

2:05 pm-7:25 pm

1 stop37h 20m

Jeju City

Tue 7/21

7:25 am-11:00 am

2 stops19h 35m

$1,544

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 12/12

12:40 pm-6:40 am

2 stops25h 00m

Jeju City

Sat 12/19

12:05 pm-3:05 pm

1 stop20h 00m

$1,569

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 8/18

6:03 am-6:10 pm

2 stops44h 07m

Jeju City

Wed 8/26

7:10 pm-7:06 am

2 stops51h 56m

$2,021

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 9/5

12:30 am-6:10 pm

2 stops25h 40m

Jeju City

Sun 9/13

7:10 pm-7:40 pm

2 stops40h 30m

$2,340

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 8/18

7:16 am-12:30 pm

2 stops37h 14m

Jeju City

Wed 8/26

7:10 pm-4:13 pm

2 stops37h 03m

$2,689
Cheapest one-way
Quickest one-way

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 7/30

6:25 pm-11:50 am

3 stops49h 25m

$675

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/20

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 June.
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 26h 05m. There are 5406 mi between Seattle and Jeju City.

  • 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?

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

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