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Jeju-do

$520+ Cheap flights from Seattle (SEA) to Jeju-do

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CJU
Mar 17 — Mar 241
Tue 3/17
Tue 3/24
1 adult, Economy
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Cheap flight deals from Seattle to Jeju-do

Cheapest flights from Seattle to Jeju-do
Explore the most affordable flight options available from Seattle to Jeju-do. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 15, 2026.

This FlightHub deal was found by Cheapflights users on 2/11. 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 4/1411:45 am
SEA
-
CJU
1 stop26h 35m
Cathay Pacific
Tue 4/217:30 am
CJU
-
SEA
1 stop18h 35m
Cathay Pacific
Deal found 2/11$994
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/1311:45 am
SEA
-
CJU
1 stop26h 35m
Multiple Airlines
Tue 4/217:30 am
CJU
-
SEA
1 stop18h 35m
Multiple Airlines
Deal found 2/11$1,010
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/1311:45 am
SEA
-
CJU
1 stop26h 35m
Multiple Airlines
Wed 4/227:30 am
CJU
-
SEA
1 stop18h 35m
Multiple Airlines
Deal found 2/11$1,013
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/1411:45 am
SEA
-
CJU
1 stop26h 35m
Multiple Airlines
Wed 4/227:30 am
CJU
-
SEA
1 stop18h 35m
Multiple Airlines
Deal found 2/11$1,016
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/1311:45 am
SEA
-
CJU
1 stop26h 35m
Multiple Airlines
Mon 4/207:30 am
CJU
-
SEA
1 stop18h 35m
Multiple Airlines
Deal found 2/11$1,026
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/1411:45 am
SEA
-
CJU
1 stop26h 35m
Multiple Airlines
Mon 4/207:30 am
CJU
-
SEA
1 stop18h 35m
Multiple Airlines
Deal found 2/11$1,027
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/1611:45 am
SEA
-
CJU
1 stop26h 35m
Multiple Airlines
Tue 4/217:30 am
CJU
-
SEA
1 stop18h 35m
Multiple Airlines
Deal found 2/11$1,042
This Booking.com deal was found by Cheapflights users on 2/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:45 am
SEA
-
CJU
1 stop26h 35m
Multiple Airlines
Mon 9/285:00 pm
CJU
-
SEA
1 stop13h 55m
Multiple Airlines
Deal found 2/13$1,043
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/1611:45 am
SEA
-
CJU
1 stop26h 35m
Multiple Airlines
Wed 4/227:30 am
CJU
-
SEA
1 stop18h 35m
Multiple Airlines
Deal found 2/11$1,044
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/1611:45 am
SEA
-
CJU
1 stop26h 35m
Multiple Airlines
Thu 4/237:30 am
CJU
-
SEA
1 stop18h 35m
Multiple Airlines
Deal found 2/11$1,058
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/111:15 am
SEA
-
CJU
1 stop24h 15m
Multiple Airlines
Thu 4/2312:20 pm
CJU
-
SEA
1 stop19h 50m
Multiple Airlines
Deal found 2/11$1,065

Find flight deals from Seattle to Jeju-do

Keep the following information in mind while searching for Seattle to Jeju-do flight deals. Data was last updated February 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$994
(FlightHub)

One-way from

$520
(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-do
Search Deals
One-way flight from Seattle/Tacoma Intl to Jeju-do
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Jeju-do 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 February 15, 2026.
Use the filters below to find and compare flights from Seattle to Jeju-do that are best for you.

Fly from

Seattle

Fly to

Jeju-do

Route

Depart

Return

Price

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 4/13

11:45 am-6:20 am

1 stop26h 35m

Jeju City

Tue 4/21

7:30 am-10:05 am

1 stop18h 35m

$1,010

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 4/14

11:45 am-6:20 am

1 stop26h 35m

Jeju City

Thu 4/23

7:30 am-10:05 am

1 stop18h 35m

$1,027

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 4/13

11:45 am-6:20 am

1 stop26h 35m

Jeju City

Thu 4/23

7:30 am-10:05 am

1 stop18h 35m

$1,027

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 4/16

11:45 am-6:20 am

1 stop26h 35m

Jeju City

Mon 4/20

7:30 am-10:05 am

1 stop18h 35m

$1,058

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 4/13

11:45 am-6:20 am

1 stop26h 35m

Jeju City

Sat 4/25

7:30 am-10:05 am

1 stop18h 35m

$1,120

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 4/14

11:45 am-6:20 am

1 stop26h 35m

Jeju City

Sat 4/25

7:30 am-10:05 am

1 stop18h 35m

$1,123

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Wed 4/15

11:45 am-6:20 am

1 stop26h 35m

Jeju City

Wed 4/22

7:30 am-10:05 am

1 stop18h 35m

$1,173

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 3/12

1:10 am-9:20 am

1 stop16h 10m

Jeju City

Fri 3/20

7:55 am-7:40 pm

2 stops27h 45m

$1,240

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 3/31

1:10 am-5:30 pm

1 stop24h 20m

Jeju City

Wed 4/8

7:30 am-8:05 pm

2 stops28h 35m

$1,267

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 4/13

1:10 am-5:30 pm

1 stop24h 20m

Jeju City

Fri 4/24

10:30 am-10:50 pm

2 stops28h 20m

$1,277

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/13

Showing 1-10 of 12 results
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Best time to book a flight from Seattle to Jeju-do

Have a flexible travel schedule? Discover the best time to fly to Jeju-do 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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Jeju-do
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly from for flights from Seattle to Jeju-do?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Jeju-do. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Jeju-do 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

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