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Cheap flights from Seattle to Jeju City from $496

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 9/15. 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.
Cathay Pacific Logo
12:25 pm - 6:30 am
SEA
-
CJU
26h 05m
1 stop
Cathay Pacific Logo
7:30 am - 10:05 am
CJU
-
SEA
18h 35m
1 stop
$829Cathay Pacific
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
12:25 pm - 6:30 am
SEA
-
CJU
26h 05m
1 stop
Multiple Airlines Logo
7:30 am - 7:40 pm
CJU
-
SEA
28h 10m
2 stops
$1,059Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
7:26 am - 12:30 pm
SEA
-
CJU
37h 04m
2 stops
Multiple Airlines Logo
7:10 pm - 5:39 pm
CJU
-
SEA
38h 29m
2 stops
$1,090Multiple 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
9:30 pm - 10:05 am
CJU
-
SEA
28h 35m
2 stops
$1,117Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
12:25 pm - 6:30 am
SEA
-
CJU
26h 05m
1 stop
Multiple Airlines Logo
9:30 pm - 10:05 am
CJU
-
SEA
28h 35m
2 stops
$1,120Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
1:30 am - 11:25 am
SEA
-
CJU
41h 55m
2 stops
Multiple Airlines Logo
2:50 pm - 7:00 pm
CJU
-
SEA
20h 10m
2 stops
$1,150Multiple Airlines
Wed, Sep 9 - Thu, Sep 17
Multiple Airlines Logo
12:25 pm - 6:30 am
SEA
-
CJU
26h 05m
1 stop
Multiple Airlines Logo
8:35 am - 7:15 pm
CJU
-
SEA
26h 40m
3 stops
$1,190Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
1:30 am - 6:55 pm
SEA
-
CJU
25h 25m
2 stops
Multiple Airlines Logo
2:30 pm - 10:05 am
CJU
-
SEA
35h 35m
3 stops
$1,193Multiple Airlines
Wed, Sep 9 - Thu, Sep 17
Multiple Airlines Logo
12:25 pm - 10:45 am
SEA
-
CJU
30h 20m
3 stops
Multiple Airlines Logo
7:30 am - 7:40 pm
CJU
-
SEA
28h 10m
2 stops
$1,199Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
12:25 pm - 6:30 am
SEA
-
CJU
26h 05m
1 stop
Multiple Airlines Logo
10:15 pm - 4:35 pm
CJU
-
SEA
34h 20m
1 stop
$1,207Multiple Airlines
Tue, Aug 18 - Wed, Aug 26

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Cathay Pacific flights from Seattle to Jeju City

Our best Cathay Pacific deals on Seattle to Jeju City flight tickets
Cathay Pacific
Sep 14
SEA12:25 pmSeattle/Tacoma Intl
26h 05m
1 stop
CJU6:30 amJeju City
Sep 21
CJU7:30 amJeju City
18h 35m
1 stop
SEA10:05 amSeattle/Tacoma Intl
$829
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
$1,603
Cathay Pacific
Dec 14
SEA10:50 amSeattle/Tacoma Intl
26h 50m
1 stop
CJU6:40 amJeju City
Jan 6
CJU7:45 amJeju City
18h 25m
1 stop
SEA9:10 amSeattle/Tacoma Intl
$1,893

China Eastern flights from Seattle to Jeju City

Our best China Eastern deals on Seattle to Jeju City flight tickets
China Eastern
Aug 18
SEA7:16 amSeattle/Tacoma Intl
37h 14m
2 stops
CJU12:30 pmJeju City
Aug 26
CJU7:10 pmJeju City
37h 27m
2 stops
SEA4:37 pmSeattle/Tacoma Intl
$2,666
China Eastern
Sep 13
SEA10:40 pmSeattle/Tacoma Intl
48h 20m
2 stops
CJU3:00 pmJeju City
Sep 16
CJU7:10 pmJeju City
37h 34m
2 stops
SEA4:44 pmSeattle/Tacoma Intl
$2,784
China Eastern
Sep 13
SEA7:15 amSeattle/Tacoma Intl
37h 15m
2 stops
CJU12:30 pmJeju City
Sep 16
CJU1:40 pmJeju City
43h 04m
2 stops
SEA4:44 pmSeattle/Tacoma Intl
$2,825

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 August 2, 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
Quickest round-trip

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 9/14

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

Mon 9/21

7:30 am-10:05 am

1 stop18h 35m

$829

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 9/14

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

Mon 9/21

7:30 am-7:40 pm

2 stops28h 10m

$1,059

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 8/18

7:26 am-12:30 pm

2 stops37h 04m

Jeju City

Wed 8/26

7:10 pm-5:39 pm

2 stops38h 29m

$1,090

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 9/10

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

Thu 9/17

9:30 pm-10:05 am

2 stops28h 35m

$1,117

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 9/10

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

Thu 9/17

9:30 pm-10:05 am

2 stops28h 35m

$1,120

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Wed 9/9

1:30 am-11:25 am

2 stops41h 55m

Jeju City

Thu 9/17

2:50 pm-7:00 pm

2 stops20h 10m

$1,150

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 9/14

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

Mon 9/21

8:35 am-7:15 pm

3 stops26h 40m

$1,190

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Wed 9/9

1:30 am-6:55 pm

2 stops25h 25m

Jeju City

Thu 9/17

2:30 pm-10:05 am

3 stops35h 35m

$1,193

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 9/14

12:25 pm-10:45 am

3 stops30h 20m

Jeju City

Mon 9/21

7:30 am-7:40 pm

2 stops28h 10m

$1,199

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-4:35 pm

1 stop34h 20m

$1,207

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Jeju City from

How to get the cheapest flight ticket from Seattle to Jeju City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Seattle/Tacoma Intl to Jeju City?

Cathay Pacific is the most popular carrier operating from Seattle/Tacoma Intl to Jeju City

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 05m

Direct flights

None
The fastest flight from Seattle to Jeju City takes 26h 05m
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 05m 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.

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