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Cheap flights from Seattle to Jeju City from $687

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Jeju City departing on 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Jeju City

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:25 pm - 6:30 am
SEA
-
CJU
26h 05m
1 stop
Multiple Airlines Logo
10:30 am - 11:05 am
CJU
-
SEA
40h 35m
2 stops
$1,194Multiple Airlines
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
12:25 pm - 6:30 am
SEA
-
CJU
26h 05m
1 stop
Multiple Airlines Logo
10:15 pm - 7:45 pm
CJU
-
SEA
37h 30m
1 stop
$1,213Multiple Airlines
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
12:10 am - 10:30 pm
SEA
-
CJU
30h 20m
3 stops
Multiple Airlines Logo
8:00 pm - 2:22 pm
CJU
-
SEA
34h 22m
3 stops
$1,316Multiple Airlines
Mon, Aug 17 - Wed, Aug 26
Multiple Airlines Logo
10:15 am - 9:15 am
SEA
-
CJU
31h 00m
1 stop
Multiple Airlines Logo
7:30 am - 7:40 pm
CJU
-
SEA
28h 10m
2 stops
$1,319Multiple Airlines
Sun, Sep 6 - Sun, Sep 13
Multiple Airlines Logo
5:50 am - 10:30 pm
SEA
-
CJU
24h 40m
2 stops
Multiple Airlines Logo
6:35 pm - 2:22 pm
CJU
-
SEA
35h 47m
3 stops
$1,357Multiple Airlines
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
1:15 am - 10:25 pm
SEA
-
CJU
29h 10m
3 stops
Multiple Airlines Logo
7:30 am - 4:10 pm
CJU
-
SEA
24h 40m
2 stops
$1,361Multiple Airlines
Sat, Sep 5 - Sun, Sep 13
Multiple Airlines Logo
1:55 am - 6:05 am
SEA
-
CJU
36h 10m
1 stop
Multiple Airlines Logo
10:40 am - 7:45 pm
CJU
-
SEA
25h 05m
1 stop
$1,394Multiple Airlines
Sat, Sep 5 - Sun, Sep 13
Multiple Airlines Logo
1:55 am - 9:40 pm
SEA
-
CJU
27h 45m
3 stops
Multiple Airlines Logo
10:45 am - 7:40 pm
CJU
-
SEA
24h 55m
3 stops
$1,538Multiple Airlines
Sat, Sep 5 - Sun, Sep 13
Multiple Airlines Logo
1:10 am - 9:25 am
SEA
-
CJU
16h 15m
1 stop
Multiple Airlines Logo
10:40 am - 7:50 pm
CJU
-
SEA
25h 10m
1 stop
$1,583Multiple Airlines
Sat, Aug 8 - Sun, Aug 16
Multiple Airlines Logo
1:25 pm - 7:35 am
SEA
-
CJU
26h 10m
2 stops
Multiple Airlines Logo
5:45 pm - 10:50 am
CJU
-
SEA
33h 05m
2 stops
$1,585Multiple Airlines
Sun, Aug 9 - Sun, Aug 16

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China Eastern flights from Seattle to Jeju City

Our best China Eastern deals on Seattle to Jeju City flight tickets
China Eastern
Aug 18
SEA10:40 pmSeattle/Tacoma Intl
48h 20m
2 stops
CJU3:00 pmJeju City
Aug 26
CJU7:10 pmJeju City
37h 03m
2 stops
SEA4:13 pmSeattle/Tacoma Intl
$2,799
China Eastern
Sep 10
SEA7:15 amSeattle/Tacoma Intl
37h 15m
2 stops
CJU12:30 pmJeju City
Sep 14
CJU7:10 pmJeju City
37h 37m
2 stops
SEA4:47 pmSeattle/Tacoma Intl
$3,530
China Eastern
Sep 10
SEA7:20 amSeattle/Tacoma Intl
37h 10m
2 stops
CJU12:30 pmJeju City
Sep 14
CJU7:10 pmJeju City
37h 37m
2 stops
SEA4:47 pmSeattle/Tacoma Intl
$3,595

Cathay Pacific flights from Seattle to Jeju City

Our best Cathay Pacific deals on Seattle to Jeju City flight tickets
Cathay Pacific
Aug 18
SEA12:25 pmSeattle/Tacoma Intl
26h 05m
1 stop
CJU6:30 amJeju City
Aug 26
CJU7:30 amJeju City
18h 50m
1 stop
SEA10:20 amSeattle/Tacoma Intl
$1,655
Cathay Pacific
Aug 18
SEA12:25 pmSeattle/Tacoma Intl
26h 05m
1 stop
CJU6:30 amJeju City
Aug 26
CJU7:30 amJeju City
18h 50m
1 stop
SEA10:20 amSeattle/Tacoma Intl
$1,660

momondo 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, momondo users made 832,500 searches. Data last updated June 16, 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

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 8/18

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

Wed 8/26

10:30 am-11:05 am

2 stops40h 35m

$1,194

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 8/18

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

Wed 8/26

10:15 pm-7:45 pm

1 stop37h 30m

$1,213

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 8/17

12:10 am-10:30 pm

3 stops30h 20m

Jeju City

Wed 8/26

8:00 pm-2:22 pm

3 stops34h 22m

$1,316

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 9/6

10:15 am-9:15 am

1 stop31h 00m

Jeju City

Sun 9/13

7:30 am-7:40 pm

2 stops28h 10m

$1,319

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 8/18

5:50 am-10:30 pm

2 stops24h 40m

Jeju City

Wed 8/26

6:35 pm-2:22 pm

3 stops35h 47m

$1,357

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 9/5

1:15 am-10:25 pm

3 stops29h 10m

Jeju City

Sun 9/13

7:30 am-4:10 pm

2 stops24h 40m

$1,361

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 9/5

1:55 am-6:05 am

1 stop36h 10m

Jeju City

Sun 9/13

10:40 am-7:45 pm

1 stop25h 05m

$1,394

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 9/5

1:55 am-9:40 pm

3 stops27h 45m

Jeju City

Sun 9/13

10:45 am-7:40 pm

3 stops24h 55m

$1,538
Quickest round-trip

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 8/8

1:10 am-9:25 am

1 stop16h 15m

Jeju City

Sun 8/16

10:40 am-7:50 pm

1 stop25h 10m

$1,583

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 8/9

1:25 pm-7:35 am

2 stops26h 10m

Jeju City

Sun 8/16

5:45 pm-10:50 am

2 stops33h 05m

$1,585

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

When to book flights from Seattle to Jeju City

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Jeju City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Jeju City (SEA to CJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Jeju City

Fastest flight time

26h 10m

Direct flights

None
The fastest flight from Seattle to Jeju City takes 26h 10m
There are no direct flights from Seattle to Jeju City. There are no popular flight routes from Seattle to Jeju City.
Search flight deals

Frequently asked questions about flying from Seattle to Jeju City

  • How far is Seattle/Tacoma Intl to Jeju City by plane?

    There are 5397.0 mi between Seattle/Tacoma Intl and Jeju City. Typically, this will take 26h 10m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Jeju City Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Jeju City Airport refresh daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Jeju City Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Jeju City Airport.

  • What documentation or ID do you need to fly to Jeju City Airport?

    The necessary travel and health documents for your Jeju City Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Seattle to Jeju City

  • How do I get Price Alerts for flights from Seattle to Jeju City?

    Confirm your travel details to search for the latest offers for flights from Seattle to Jeju City. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to Jeju City with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near Jeju City?

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

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Jeju City?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Jeju City from Seattle.

Can I find flights from Seattle to Jeju City with flexible booking policies on momondo?

momondo does allow users to show only those flights to Jeju City from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Jeju City?

Once all potential Seattle to Jeju City flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Jeju City right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Jeju City, momondo offers a useful price alert feature which will track prices for flights to Jeju City from Seattle and alert you when they change.

An easier way to manage your Jeju City trip

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Cabin classes currently available on flights to Jeju City

List of cabin classes available on flights landing in Jeju City. Availability may vary depending on flight origin and airline.
First Class to Jeju City
Business Class to Jeju City