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Cheap flights from Seattle to Jeju-do from $527

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-do departing on 8/1. 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-do

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:10 am - 6:10 pm
SEA
-
CJU
26h 00m
2 stops
Multiple Airlines Logo
3:55 pm - 3:45 pm
CJU
-
SEA
15h 50m
1 stop
$1,454Multiple Airlines
dom., jul. 19 - lun., jul. 27
Multiple Airlines Logo
10:45 am - 7:30 am
SEA
-
CJU
28h 45m
3 stops
Multiple Airlines Logo
7:50 pm - 2:22 pm
CJU
-
SEA
34h 32m
3 stops
$1,479Multiple Airlines
lun., jul. 20 - lun., jul. 27
Multiple Airlines Logo
12:40 pm - 6:40 am
SEA
-
CJU
25h 00m
2 stops
Multiple Airlines Logo
12:05 pm - 3:05 pm
CJU
-
SEA
20h 00m
1 stop
$1,569Multiple Airlines
sáb., dic. 12 - sáb., dic. 19
Multiple Airlines Logo
2:10 am - 10:15 pm
SEA
-
CJU
28h 05m
2 stops
Multiple Airlines Logo
8:45 am - 7:50 pm
CJU
-
SEA
27h 05m
2 stops
$1,571Multiple Airlines
mar., ago. 4 - mié., ago. 12
Multiple Airlines Logo
12:10 am - 10:30 pm
SEA
-
CJU
30h 20m
2 stops
Multiple Airlines Logo
7:25 am - 3:45 pm
CJU
-
SEA
24h 20m
2 stops
$1,578Multiple Airlines
dom., jul. 19 - lun., jul. 27
Multiple Airlines Logo
1:10 am - 9:45 am
SEA
-
CJU
16h 35m
1 stop
Multiple Airlines Logo
10:30 am - 2:05 pm
CJU
-
SEA
43h 35m
2 stops
$1,587Multiple Airlines
mar., ago. 4 - mié., ago. 12
Multiple Airlines Logo
10:45 am - 7:30 am
SEA
-
CJU
28h 45m
3 stops
Multiple Airlines Logo
7:05 pm - 2:22 pm
CJU
-
SEA
35h 17m
3 stops
$1,608Multiple Airlines
mié., ago. 5 - mié., ago. 12
Cathay Pacific Logo
12:25 pm - 6:30 am
SEA
-
CJU
26h 05m
1 stop
Cathay Pacific Logo
7:30 am - 10:20 am
CJU
-
SEA
18h 50m
1 stop
$1,640Cathay Pacific
mar., ago. 18 - mié., ago. 26
Cathay Pacific Logo
12:25 pm - 6:30 am
SEA
-
CJU
26h 05m
1 stop
Cathay Pacific Logo
7:30 am - 10:20 am
CJU
-
SEA
18h 50m
1 stop
$1,655Cathay Pacific
mar., ago. 18 - mié., ago. 26
Cathay Pacific Logo
12:25 pm - 6:30 am
SEA
-
CJU
26h 05m
1 stop
Cathay Pacific Logo
7:30 am - 10:20 am
CJU
-
SEA
18h 50m
1 stop
$1,656Cathay Pacific
mar., ago. 18 - mié., ago. 26

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Cathay Pacific flights from Seattle to Jeju-do

Our best Cathay Pacific deals on Seattle to Jeju-do 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
$1,640
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
Jul 20
SEA12:25 pmSeattle/Tacoma Intl
26h 05m
1 stop
CJU6:30 amJeju City
Jul 27
CJU7:30 amJeju City
18h 50m
1 stop
SEA10:20 amSeattle/Tacoma Intl
$1,950

China Eastern flights from Seattle to Jeju-do

Our best China Eastern deals on Seattle to Jeju-do 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 03m
2 stops
SEA4:13 pmSeattle/Tacoma Intl
$2,689
China Eastern
Aug 18
SEA10:40 pmSeattle/Tacoma Intl
45h 50m
2 stops
CJU12:30 pmJeju City
Aug 26
CJU1:40 pmJeju City
42h 33m
2 stops
SEA4:13 pmSeattle/Tacoma Intl
$2,799
China Eastern
Aug 18
SEA7:16 amSeattle/Tacoma Intl
37h 14m
2 stops
CJU12:30 pmJeju City
Aug 26
CJU1:40 pmJeju City
42h 33m
2 stops
SEA4:13 pmSeattle/Tacoma Intl
$2,834

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Jeju-do 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 junio 23, 2026.
Use the filters below to find and compare flights from Seattle to Jeju-do 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

dom. 7/19

12:10 am-6:10 pm

2 stops26h 00m

Jeju City

lun. 7/27

3:55 pm-3:45 pm

1 stop15h 50m

$1,454

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

lun. 7/20

10:45 am-7:30 am

3 stops28h 45m

Jeju City

lun. 7/27

7:50 pm-2:22 pm

3 stops34h 32m

$1,479

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

sáb. 12/12

12:40 pm-6:40 am

2 stops25h 00m

Jeju City

sáb. 12/19

12:05 pm-3:05 pm

1 stop20h 00m

$1,569

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

mar. 8/4

2:10 am-10:15 pm

2 stops28h 05m

Jeju City

mié. 8/12

8:45 am-7:50 pm

2 stops27h 05m

$1,571

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

dom. 7/19

12:10 am-10:30 pm

2 stops30h 20m

Jeju City

lun. 7/27

7:25 am-3:45 pm

2 stops24h 20m

$1,578

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

mar. 8/4

1:10 am-9:45 am

1 stop16h 35m

Jeju City

mié. 8/12

10:30 am-2:05 pm

2 stops43h 35m

$1,587

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

mié. 8/5

10:45 am-7:30 am

3 stops28h 45m

Jeju City

mié. 8/12

7:05 pm-2:22 pm

3 stops35h 17m

$1,608

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

mar. 8/18

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

mié. 8/26

7:30 am-10:20 am

1 stop18h 50m

$1,640

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

mar. 8/18

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

mié. 8/26

7:30 am-10:20 am

1 stop18h 50m

$1,655

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

mar. 8/18

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

mié. 8/26

7:30 am-10:20 am

1 stop18h 50m

$1,656

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-do from

How to get the cheapest flight ticket from Seattle to Jeju-do

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-do?

Korean Air is the most popular carrier operating from Seattle/Tacoma Intl to Jeju-do

Cheap Seattle to Jeju-do flight deals and tips

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

Fastest flight time

25h 00m

Direct flights

None
The fastest flight from Seattle to Jeju-do takes 25h 00m
There are no direct flights from Seattle to Jeju-do. There are no popular flight routes from Seattle to Jeju-do.
Search flight deals

Frequently asked questions about flying from Seattle to Jeju-do

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

    Prices for flights from Seattle/Tacoma Intl Airport to Jeju-do are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Jeju-do.

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

    The travel and health documents you'll need for your trip to Jeju-do may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Jeju-do. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

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-do from Seattle.

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

Flights from Seattle to Jeju-do with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Jeju-do from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Seattle to Jeju-do now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Jeju-do and let you know when they change.

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