$1,094+ 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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CJU
Feb 28 — Mar 71
1 adult, Economy
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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 January 29, 2026.
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 January 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1111:00 am
SEA
- CJU
1 stop18h 05m
Multiple Airlines
Sun 4/197:30 am
CJU
- SEA
2 stops28h 00m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$1,094
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1111:00 am
SEA
- CJU
1 stop18h 05m
Multiple Airlines
Sat 4/187:30 am
CJU
- SEA
2 stops27h 20m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$1,120
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1211:10 pm
SEA
- CJU
2 stops26h 20m
Multiple Airlines
Sat 4/1812:20 pm
CJU
- SEA
1 stop22h 30m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$1,336
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 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
Sun 4/1912:20 pm
CJU
- SEA
1 stop19h 50m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$1,353
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:15 am
SEA
- CJU
2 stops42h 55m
China Eastern
Sun 4/191:40 pm
CJU
- SEA
2 stops44h 46m
China Eastern
Deal found 1/28![China Eastern logo]()
$1,887
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:15 am
SEA
- CJU
2 stops37h 15m
China Eastern
Sun 4/197:10 pm
CJU
- SEA
2 stops39h 16m
China Eastern
Deal found 1/28![China Eastern logo]()
$2,045
This China Eastern deal was found by Cheapflights users on 1/28. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:20 am
SEA
- CJU
2 stops37h 10m
China Eastern
Thu 9/107:10 pm
CJU
- SEA
2 stops37h 45m
China Eastern
Deal found 1/28![China Eastern logo]()
$3,622
This business-class.com deal was found by Cheapflights users on 1/29. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:45 am
SEA
- CJU
1 stop26h 35m
Cathay Pacific
Thu 5/217:30 am
CJU
- SEA
1 stop18h 35m
Cathay Pacific
Deal found 1/29![Cathay Pacific logo]()
$5,829
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
Wed 5/61:15 am
SEA
- CJU
1 stop36h 55m
Multiple Airlines
Thu 5/2110:40 pm
CJU
- SEA
2 stops32h 15m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$6,410
Find 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 January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,094 (Kiwi.com) |
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 January 29, 2026.
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
Sat 4/11
11:00 am-9:05 pm
1 stop18h 05m
Jeju City
Sun 4/19
7:30 am-7:30 pm
2 stops28h 00m
$1,094
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Sat 4/11
11:00 am-9:05 pm
1 stop18h 05m
Jeju City
Sat 4/18
7:30 am-6:50 pm
2 stops27h 20m
$1,120
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Sat 4/11
1:30 am-5:30 pm
1 stop24h 00m
Jeju City
Sat 4/18
12:20 pm-6:50 pm
1 stop22h 30m
$1,187
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Sat 4/11
1:15 am-5:30 pm
1 stop24h 15m
Jeju City
Sun 4/19
12:20 pm-4:10 pm
1 stop19h 50m
$1,353
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Sat 4/11
7:15 am-6:10 pm
2 stops42h 55m
Jeju City
Sun 4/19
1:40 pm-6:26 pm
2 stops44h 46m
$1,887
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Sun 4/12
7:15 am-12:30 pm
2 stops37h 15m
Jeju City
Sun 4/19
7:10 pm-6:26 pm
2 stops39h 16m
$2,045
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Thu 5/7
11:45 am-6:20 am
1 stop26h 35m
Jeju City
Thu 5/21
7:30 am-10:05 am
1 stop18h 35m
$5,829
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Wed 5/6
1:15 am-6:10 am
1 stop36h 55m
Jeju City
Thu 5/21
10:40 pm-2:55 pm
2 stops32h 15m
$6,410
SeattleJeju City
SEA - CJU
SEACJU
Seattle/Tacoma Intl
Thu 5/7
7:20 am-12:30 pm
2 stops37h 10m
Jeju City
Thu 5/21
1:40 pm-4:55 pm
2 stops43h 15m
$6,707
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
Everything you need to know about your flight from Washington to Jeju-do
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