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Cheap flights from Seattle to Jeju City from $484

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 8/20. 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

China Eastern Logo
7:10 am - 3:00 pmSEA-CJU
39h 50m2 stops
China Eastern Logo
7:10 pm - 4:51 pmCJU-SEA
37h 41m2 stops
$914China Eastern
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Fri, Aug 29 - Mon, Sep 8
Logo
5:30 am - 9:20 amSEA-CJU
35h 50m3 stops
Logo
7:55 am - 6:36 pmCJU-SEA
26h 41m3 stops
$1,122
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
1:40 am - 5:30 pmSEA-CJU
23h 50m1 stop
Logo
7:30 am - 12:30 pmCJU-SEA
21h 00m2 stops
$1,142
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Thu, Aug 28 - Mon, Sep 8
Logo
12:50 pm - 10:15 pmSEA-CJU
17h 25m2 stops
Logo
7:55 am - 6:36 pmCJU-SEA
26h 41m3 stops
$1,145
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
12:50 pm - 10:15 pmSEA-CJU
17h 25m2 stops
Logo
7:55 am - 10:16 pmCJU-SEA
30h 21m2 stops
$1,178
Find Deal
Fri, Sep 12 - Fri, Sep 19
China Eastern Logo
7:10 am - 6:10 pmSEA-CJU
43h 00m2 stops
China Eastern Logo
4:00 pm - 4:00 pmCJU-SEA
40h 00m2 stops
$1,181China Eastern
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Sat, Aug 16 - Fri, Aug 22
Logo
1:15 am - 5:30 pmSEA-CJU
24h 15m1 stop
Logo
10:20 am - 4:10 pmCJU-SEA
21h 50m1 stop
$1,195
Find Deal
Thu, Aug 28 - Mon, Sep 8
Korean Air Logo
1:20 pm - 10:15 pmSEA-CJU
16h 55m2 stops
Korean Air Logo
4:45 pm - 10:50 amCJU-SEA
34h 05m2 stops
$1,227Korean Air
Find Deal
Fri, Aug 15 - Sat, Aug 23
Singapore Airlines Logo
10:15 am - 7:15 amSEA-CJU
29h 00m1 stop
Singapore Airlines Logo
8:35 am - 8:45 amCJU-SEA
40h 10m1 stop
$1,391Singapore Airlines
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Fri, Sep 12 - Fri, Sep 19
Singapore Airlines Logo
10:15 am - 7:15 amSEA-CJU
29h 00m1 stop
Singapore Airlines Logo
10:05 am - 8:45 amCJU-SEA
38h 40m1 stop
$1,779Singapore Airlines
Find Deal
Fri, Aug 29 - Mon, Sep 8

China Eastern flights from Seattle to Jeju City

Our best China Eastern deals on Seattle to Jeju City flight tickets
China Eastern
Aug 29
SEA7:10 amSeattle/Tacoma Intl
39h 50m
2 stops
CJU3:00 pmJeju City
Sep 8
CJU7:10 pmJeju City
37h 41m
2 stops
SEA4:51 pmSeattle/Tacoma Intl
$914
Find similar
China Eastern
Aug 16
SEA7:10 amSeattle/Tacoma Intl
43h 00m
2 stops
CJU6:10 pmJeju City
Aug 22
CJU4:00 pmJeju City
40h 00m
2 stops
SEA4:00 pmSeattle/Tacoma Intl
$1,181
Find similar

Singapore Airlines flights from Seattle to Jeju City

Our best Singapore Airlines deals on Seattle to Jeju City flight tickets
Singapore Airlines
Sep 12
SEA10:15 amSeattle/Tacoma Intl
29h 00m
1 stop
CJU7:15 amJeju City
Sep 19
CJU8:35 amJeju City
40h 10m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$1,391
Find similar
Singapore Airlines
Aug 29
SEA10:15 amSeattle/Tacoma Intl
29h 00m
1 stop
CJU7:15 amJeju City
Sep 8
CJU10:05 amJeju City
38h 40m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$1,779
Find similar

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 July 31, 2025.
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

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 8/29

7:10 am-3:00 pm

2 stops39h 50m

Jeju City

Mon 9/8

7:10 pm-4:51 pm

2 stops37h 41m

$914

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 9/12

5:30 am-9:20 am

3 stops35h 50m

Jeju City

Fri 9/19

7:55 am-6:36 pm

3 stops26h 41m

$1,122

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 8/28

1:40 am-5:30 pm

1 stop23h 50m

Jeju City

Mon 9/8

7:30 am-12:30 pm

2 stops21h 00m

$1,142

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 9/12

12:50 pm-10:15 pm

2 stops17h 25m

Jeju City

Fri 9/19

7:55 am-6:36 pm

3 stops26h 41m

$1,145

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 9/12

12:50 pm-10:15 pm

2 stops17h 25m

Jeju City

Fri 9/19

7:55 am-10:16 pm

2 stops30h 21m

$1,178

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 8/16

7:10 am-6:10 pm

2 stops43h 00m

Jeju City

Fri 8/22

4:00 pm-4:00 pm

2 stops40h 00m

$1,181

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 8/28

1:15 am-5:30 pm

1 stop24h 15m

Jeju City

Mon 9/8

10:20 am-4:10 pm

1 stop21h 50m

$1,195

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 8/15

1:20 pm-10:15 pm

2 stops16h 55m

Jeju City

Sat 8/23

4:45 pm-10:50 am

2 stops34h 05m

$1,227

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 9/12

10:15 am-7:15 am

1 stop29h 00m

Jeju City

Fri 9/19

8:35 am-8:45 am

1 stop40h 10m

$1,391

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 8/29

10:15 am-7:15 am

1 stop29h 00m

Jeju City

Mon 9/8

10:05 am-8:45 am

1 stop38h 40m

$1,779

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Best Price Found

$484

Fastest flight time

16h 10m

Direct flights

None

Airports in Jeju City

1 airport
The best one-way flight to Jeju City from Seattle in the past 72 hours is $484. The best round-trip flight deal from Seattle to Jeju City found on momondo in the last 72 hours is $914.
The fastest flight from Seattle to Jeju City takes 16h 10m
There are no direct flights from Seattle to Jeju City. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Jeju City Airport.
There is 1 airport near Jeju City: Jeju City (CJU)
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  • 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 16h 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.

Traveling to a place near Jeju City?

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