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Cheap flights from Seattle to Jeju City from $525

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 5/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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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
5:50 am - 6:30 am
SEA
-
CJU
32h 40m
2 stops
Multiple Airlines Logo
7:40 pm - 10:40 am
CJU
-
SEA
31h 00m
2 stops
$1,437Multiple Airlines
Sun, May 10 - Tue, May 12
Multiple Airlines Logo
12:10 am - 2:00 pm
SEA
-
CJU
21h 50m
2 stops
Multiple Airlines Logo
9:30 am - 8:45 am
CJU
-
SEA
39h 15m
1 stop
$1,494Multiple Airlines
Fri, Jul 24 - Fri, Aug 7
Multiple Airlines Logo
1:15 am - 9:25 am
SEA
-
CJU
16h 10m
1 stop
Multiple Airlines Logo
7:30 am - 6:50 pm
CJU
-
SEA
27h 20m
2 stops
$1,500Multiple Airlines
Sat, May 9 - Tue, May 12
Multiple Airlines Logo
7:03 am - 7:45 am
SEA
-
CJU
32h 42m
3 stops
Multiple Airlines Logo
7:05 pm - 6:45 pm
CJU
-
SEA
39h 40m
3 stops
$1,527Multiple Airlines
Sat, Jul 4 - Sat, Jul 11
Multiple Airlines Logo
2:05 pm - 7:25 pm
SEA
-
CJU
37h 20m
1 stop
Multiple Airlines Logo
4:05 pm - 9:34 pm
CJU
-
SEA
21h 29m
2 stops
$1,542Multiple Airlines
Sat, Jul 4 - Sat, Jul 11
Multiple Airlines Logo
2:05 pm - 7:25 pm
SEA
-
CJU
37h 20m
1 stop
Multiple Airlines Logo
4:05 pm - 9:34 pm
CJU
-
SEA
21h 29m
2 stops
$1,548Multiple Airlines
Sat, Jul 4 - Sat, Jul 11
Korean Air Logo
1:20 pm - 12:10 pm
SEA
-
CJU
30h 50m
2 stops
Korean Air Logo
8:30 pm - 11:00 am
CJU
-
SEA
30h 30m
2 stops
$1,579Korean Air
Tue, Jun 9 - Tue, Jun 16
Multiple Airlines Logo
7:03 am - 7:45 am
SEA
-
CJU
32h 42m
3 stops
Multiple Airlines Logo
8:55 pm - 10:50 am
CJU
-
SEA
29h 55m
2 stops
$1,620Multiple Airlines
Sat, Jul 4 - Sat, Jul 11
Multiple Airlines Logo
10:30 am - 7:45 am
SEA
-
CJU
29h 15m
3 stops
Multiple Airlines Logo
7:30 am - 10:48 pm
CJU
-
SEA
31h 18m
3 stops
$1,621Multiple Airlines
Sat, Jul 25 - Fri, Aug 7
Multiple Airlines Logo
5:45 am - 7:05 pm
SEA
-
CJU
21h 20m
2 stops
Multiple Airlines Logo
7:05 pm - 2:20 pm
CJU
-
SEA
35h 15m
3 stops
$1,641Multiple Airlines
Tue, Jun 9 - Tue, Jun 16

Singapore Airlines flights from Seattle to Jeju City

Our best Singapore Airlines deals on Seattle to Jeju City flight tickets
Singapore Airlines
Jul 25
SEA10:15 amSeattle/Tacoma Intl
29h 10m
1 stop
CJU7:25 amJeju City
Aug 7
CJU9:30 amJeju City
39h 15m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$1,743
Singapore Airlines
Jul 25
SEA10:15 amSeattle/Tacoma Intl
29h 10m
1 stop
CJU7:25 amJeju City
Aug 7
CJU9:30 amJeju City
39h 15m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$1,744
Singapore Airlines
Jul 25
SEA10:15 amSeattle/Tacoma Intl
29h 10m
1 stop
CJU7:25 amJeju City
Aug 7
CJU9:30 amJeju City
39h 15m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$1,804

China Eastern flights from Seattle to Jeju City

Our best China Eastern deals on Seattle to Jeju City flight tickets
China Eastern
Jun 17
SEA7:15 amSeattle/Tacoma Intl
39h 45m
2 stops
CJU3:00 pmJeju City
Jun 24
CJU7:10 pmJeju City
37h 37m
2 stops
SEA4:47 pmSeattle/Tacoma Intl
$2,440
China Eastern
Sep 2
SEA7:20 amSeattle/Tacoma Intl
39h 40m
2 stops
CJU3:00 pmJeju City
Sep 6
CJU7:10 pmJeju City
36h 14m
2 stops
SEA3:24 pmSeattle/Tacoma Intl
$2,514
China Eastern
Aug 18
SEA7:20 amSeattle/Tacoma Intl
37h 10m
2 stops
CJU12:30 pmJeju City
Aug 26
CJU7:10 pmJeju City
37h 45m
2 stops
SEA4:55 pmSeattle/Tacoma Intl
$2,634

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 April 29, 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

Sun 5/10

5:50 am-6:30 am

2 stops32h 40m

Jeju City

Tue 5/12

7:40 pm-10:40 am

2 stops31h 00m

$1,437

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 7/24

12:10 am-2:00 pm

2 stops21h 50m

Jeju City

Fri 8/7

9:30 am-8:45 am

1 stop39h 15m

$1,494
Quickest round-trip

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 5/9

1:15 am-9:25 am

1 stop16h 10m

Jeju City

Tue 5/12

7:30 am-6:50 pm

2 stops27h 20m

$1,500

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 7/4

7:03 am-7:45 am

3 stops32h 42m

Jeju City

Sat 7/11

7:05 pm-6:45 pm

3 stops39h 40m

$1,527

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 7/4

2:05 pm-7:25 pm

1 stop37h 20m

Jeju City

Sat 7/11

4:05 pm-9:34 pm

2 stops21h 29m

$1,542

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 7/4

2:05 pm-7:25 pm

1 stop37h 20m

Jeju City

Sat 7/11

4:05 pm-9:34 pm

2 stops21h 29m

$1,548

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 6/9

1:20 pm-12:10 pm

2 stops30h 50m

Jeju City

Tue 6/16

8:30 pm-11:00 am

2 stops30h 30m

$1,579

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 7/4

7:03 am-7:45 am

3 stops32h 42m

Jeju City

Sat 7/11

8:55 pm-10:50 am

2 stops29h 55m

$1,620

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 7/25

10:30 am-7:45 am

3 stops29h 15m

Jeju City

Fri 8/7

7:30 am-10:48 pm

3 stops31h 18m

$1,621

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 6/9

5:45 am-7:05 pm

2 stops21h 20m

Jeju City

Tue 6/16

7:05 pm-2:20 pm

3 stops35h 15m

$1,641

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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?

Korean Air 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

24h 15m

Direct flights

None
The fastest flight from Seattle to Jeju City takes 24h 15m
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 24h 15m 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