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Cheap flights from Seattle to Jeju City from $1,063

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Jeju City departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Jeju City

Cheap round-trip flights

Multiple Airlines Logo
5:30 am - 7:20 amSEA-CJU
33h 50m3 stops
Multiple Airlines Logo
7:55 am - 7:15 pmCJU-SEA
27h 20m2 stops
$1,063Multiple Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
1:30 am - 5:30 pmSEA-CJU
24h 00m1 stop
Multiple Airlines Logo
1:40 pm - 9:00 amCJU-SEA
35h 20m2 stops
$1,091Multiple Airlines
Find Deal
Tue, Oct 14 - Wed, Oct 22
Multiple Airlines Logo
12:30 am - 5:30 pmSEA-CJU
25h 00m1 stop
Multiple Airlines Logo
12:20 pm - 7:30 pmCJU-SEA
23h 10m1 stop
$1,095Multiple Airlines
Find Deal
Tue, Oct 14 - Wed, Oct 22
China Eastern Logo
7:10 am - 12:30 pmSEA-CJU
37h 20m2 stops
China Eastern Logo
7:10 pm - 4:54 pmCJU-SEA
37h 44m2 stops
$1,172China Eastern
Find Deal
Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
1:10 am - 8:45 pmSEA-CJU
27h 35m3 stops
Multiple Airlines Logo
7:55 am - 6:40 pmCJU-SEA
27h 45m2 stops
$1,177Multiple Airlines
Find Deal
Tue, Oct 28 - Wed, Nov 5
Multiple Airlines Logo
12:10 am - 2:00 pmSEA-CJU
21h 50m2 stops
Multiple Airlines Logo
10:10 am - 3:05 pmCJU-SEA
21h 55m1 stop
$1,181Multiple Airlines
Find Deal
Tue, Oct 28 - Wed, Nov 5
Multiple Airlines Logo
1:31 pm - 5:25 pmSEA-CJU
35h 54m2 stops
Multiple Airlines Logo
10:10 am - 3:05 pmCJU-SEA
21h 55m1 stop
$1,187Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Singapore Airlines Logo
9:45 am - 7:20 amSEA-CJU
29h 35m1 stop
Singapore Airlines Logo
7:55 pm - 8:10 amCJU-SEA
28h 15m1 stop
$1,481Singapore Airlines
Find Deal
Sun, Mar 8 - Thu, Mar 12
Asiana Airlines Logo
12:10 am - 7:55 pmSEA-CJU
26h 45m1 stop
Asiana Airlines Logo
8:50 pm - 1:55 pmCJU-SEA
34h 05m1 stop
$4,550Asiana Airlines
Find Deal
Thu, Nov 13 - Sat, Nov 22
Korean Air Logo
11:00 am - 10:15 pmSEA-CJU
18h 15m1 stop
Korean Air Logo
10:45 am - 9:00 amCJU-SEA
15h 15m1 stop
$6,303Korean Air
Find Deal
Fri, Nov 14 - Sat, Nov 22

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 September 16, 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

Wed 10/15

5:30 am-7:20 am

3 stops33h 50m

Jeju City

Wed 10/22

7:55 am-7:15 pm

2 stops27h 20m

$1,063

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 10/14

1:30 am-5:30 pm

1 stop24h 00m

Jeju City

Wed 10/22

1:40 pm-9:00 am

2 stops35h 20m

$1,091

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 10/14

12:30 am-5:30 pm

1 stop25h 00m

Jeju City

Wed 10/22

12:20 pm-7:30 pm

1 stop23h 10m

$1,095

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Wed 10/15

7:10 am-12:30 pm

2 stops37h 20m

Jeju City

Wed 10/22

7:10 pm-4:54 pm

2 stops37h 44m

$1,172

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 10/28

1:10 am-8:45 pm

3 stops27h 35m

Jeju City

Wed 11/5

7:55 am-6:40 pm

2 stops27h 45m

$1,177

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 10/28

12:10 am-2:00 pm

2 stops21h 50m

Jeju City

Wed 11/5

10:10 am-3:05 pm

1 stop21h 55m

$1,181

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Wed 10/29

1:31 pm-5:25 pm

2 stops35h 54m

Jeju City

Wed 11/5

10:10 am-3:05 pm

1 stop21h 55m

$1,187

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 3/8

9:45 am-7:20 am

1 stop29h 35m

Jeju City

Thu 3/12

7:55 pm-8:10 am

1 stop28h 15m

$1,481

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 11/13

12:10 am-7:55 pm

1 stop26h 45m

Jeju City

Sat 11/22

8:50 pm-1:55 pm

1 stop34h 05m

$4,550

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 11/14

11:00 am-10:15 pm

1 stop18h 15m

Jeju City

Sat 11/22

10:45 am-9:00 am

1 stop15h 15m

$6,303

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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?

Asiana Airlines 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

Direct flights

None
There are no direct flights from Seattle to Jeju City. There are no popular flight routes from Seattle to Jeju City.
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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 17h 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
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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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