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Jeju-do

$1,003+ Cheap flights from Seattle (SEA) to Jeju-do

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CJU
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find 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 October 29, 2025.

This Mytrip deal was found by Cheapflights users on 10/27. 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.
Thu 12/115:50 amSEA - CJU
3 stops35h 20mMultiple Airlines
Thu 12/187:55 amCJU - SEA
2 stops27h 45mMultiple Airlines
Deal found 10/27$1,238
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Fri 12/125:50 amSEA - CJU
3 stops32h 40mMultiple Airlines
Fri 12/191:50 pmCJU - SEA
2 stops35h 10mMultiple Airlines
Deal found 10/28$1,469
This oojo deal was found by Cheapflights users on 10/27. 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.
Thu 12/412:10 amSEA - CJU
2 stops28h 15mMultiple Airlines
Mon 12/810:25 pmCJU - SEA
2 stops36h 05mMultiple Airlines
Deal found 10/27$2,741

Cheap 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,003
(Korean Air)
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

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 October 29, 2025.
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

Sun 4/12

12:45 pm-8:25 am

1 stop27h 40m

Jeju City

Fri 4/17

2:40 pm-2:00 pm

1 stop15h 20m

$1,003

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 12/11

5:50 am-10:10 am

3 stops35h 20m

Jeju City

Thu 12/18

7:55 am-6:40 pm

2 stops27h 45m

$1,238

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 4/12

5:50 am-7:15 am

3 stops33h 25m

Jeju City

Sun 4/19

7:55 am-7:35 pm

2 stops27h 40m

$1,250

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 4/12

5:50 am-7:15 am

3 stops33h 25m

Jeju City

Fri 4/17

9:35 pm-9:00 am

2 stops27h 25m

$1,251

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 4/12

10:15 am-7:15 am

1 stop29h 00m

Jeju City

Sun 4/19

8:35 am-8:45 am

1 stop64h 10m

$1,324

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 12/12

5:50 am-7:30 am

3 stops32h 40m

Jeju City

Fri 12/19

1:50 pm-8:00 am

2 stops35h 10m

$1,469

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 3/8

9:45 am-7:20 am

1 stop29h 35m

Jeju City

Thu 3/12

7:55 pm-8:10 am

1 stop28h 15m

$1,480

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

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.

  • How long is the flight from Seattle to Jeju-do?

    Airlines like Korean Air fly from Seattle to Jeju-do in about 27h 40m. The time it takes to get you to your destination can typically vary by up to . The distance between Seattle and Jeju-do is about 5406 mi.

  • 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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