$1,640+ Cheap flights from Washington 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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CJU
Dec 2 — Dec 91
1 adult, Economy
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1. Tell us where you want to go
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Cheapest flights from Washington to Jeju-doExplore the most affordable flight options available from Washington to Jeju-do. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.
Explore the most affordable flight options available from Washington to Jeju-do. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.
This Mytrip deal was found by Cheapflights users on 11/1. 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 12/165:50 amSEA - CJU
2 stops22h 30mMultiple Airlines
Tue 12/237:55 amCJU - SEA
2 stops27h 15mMultiple Airlines
Deal found 11/1![Multiple Airlines logo]()
$1,640
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Sat 12/2710:05 amSEA - CJU
3 stops32h 30mMultiple Airlines
Sun 1/49:55 pmCJU - SEA
3 stops33h 00mMultiple Airlines
Deal found 11/1![Multiple Airlines logo]()
$1,992
Cheap flight deals from Washington to Jeju-do
Keep the following information in mind while searching for Washington to Jeju-do flight deals. Data was last updated November 2, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $1,480 (Singapore Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington 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 November 2, 2025.
Use the filters below to find and compare flights from Washington to Jeju-do that are best for you.
Fly from
Washington
Fly to
Jeju-do
Route
Depart
Return
Price
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Tue 12/16
5:50 am-9:20 pm
2 stops22h 30m
Jeju City
Tue 12/23
7:55 am-6:10 pm
2 stops27h 15m
$1,640
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Sat 12/27
10:05 am-11:35 am
3 stops32h 30m
Jeju City
Sun 1/4
9:55 pm-1:55 pm
3 stops33h 00m
$1,992
Best time to book a flight from Washington to Jeju-do
Have a flexible travel schedule? Discover the best time to fly to Jeju-do from Washington 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
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