How do I get Price Alerts for flights from Seattle to Jeju-do?

Price Alerts will notify you by email when the price for flights to Jeju-do from Seattle decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Seattle to Jeju-do with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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.

$458 Cheap Flights from Seattle to Jeju-do in 2025/26

1 adult

0 bags

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Find the cheapest flights from Seattle to Jeju-do

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:10 am - 5:55 pm

SEA

CJU

24h 45m2 stops

7:30 am - 1:55 pm

CJU

SEA

23h 25m2 stops

$918Multiple Airlines

Fri, Jan 23 - Sat, Jan 31

11:50 am - 6:20 am

SEA

CJU

26h 30m1 stop

7:55 am - 10:10 am

CJU

SEA

18h 15m1 stop

$953Cathay Pacific

Mon, May 11 - Wed, May 20

11:45 pm - 10:50 am

SEA

CJU

18h 05m1 stop

10:10 am - 3:05 pm

CJU

SEA

21h 55m1 stop

$987Multiple Airlines

Sat, Jan 24 - Sat, Jan 31

11:45 pm - 5:35 pm

SEA

CJU

24h 50m1 stop

11:45 am - 3:05 pm

CJU

SEA

20h 20m1 stop

$1,072Multiple Airlines

Fri, Jan 23 - Fri, Jan 30

11:00 am - 6:40 am

SEA

CJU

26h 40m2 stops

11:45 am - 3:05 pm

CJU

SEA

20h 20m1 stop

$1,104Multiple Airlines

Fri, Jan 23 - Fri, Jan 30

12:10 am - 9:40 pm

SEA

CJU

28h 30m2 stops

8:45 am - 6:10 pm

CJU

SEA

26h 25m2 stops

$1,108Multiple Airlines

Thu, Jan 22 - Fri, Jan 30

9:55 am - 7:40 am

SEA

CJU

28h 45m3 stops

11:25 am - 2:31 pm

CJU

SEA

20h 06m2 stops

$1,112Multiple Airlines

Fri, Jan 23 - Fri, Jan 30

12:10 am - 7:10 pm

SEA

CJU

26h 00m2 stops

8:25 am - 2:38 pm

CJU

SEA

23h 13m3 stops

$1,149Multiple Airlines

Fri, Jan 23 - Sat, Jan 31

12:10 am - 9:50 am

SEA

CJU

16h 40m1 stop

7:55 am - 5:30 pm

CJU

SEA

26h 35m2 stops

$1,150Multiple Airlines

Fri, Jan 23 - Sat, Jan 31

1:50 am - 9:20 pm

SEA

CJU

27h 30m2 stops

10:20 pm - 7:30 pm

CJU

SEA

37h 10m2 stops

$3,324Multiple Airlines

Sun, May 10 - Wed, May 20

Fly from

Fly to

Route

Depart

Return

Price

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 1/23

12:10 am-5:55 pm

2 stops24h 45m

Jeju City

Sat 1/31

7:30 am-1:55 pm

2 stops23h 25m

$918

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 5/11

11:50 am-6:20 am

1 stop26h 30m

Jeju City

Wed 5/20

7:55 am-10:10 am

1 stop18h 15m

$953

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sat 1/24

11:45 pm-10:50 am

1 stop18h 05m

Jeju City

Sat 1/31

10:10 am-3:05 pm

1 stop21h 55m

$987

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 1/23

11:45 pm-5:35 pm

1 stop24h 50m

Jeju City

Fri 1/30

11:45 am-3:05 pm

1 stop20h 20m

$1,072

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 1/23

11:00 am-6:40 am

2 stops26h 40m

Jeju City

Fri 1/30

11:45 am-3:05 pm

1 stop20h 20m

$1,104

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Thu 1/22

12:10 am-9:40 pm

2 stops28h 30m

Jeju City

Fri 1/30

8:45 am-6:10 pm

2 stops26h 25m

$1,108

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 1/23

9:55 am-7:40 am

3 stops28h 45m

Jeju City

Fri 1/30

11:25 am-2:31 pm

2 stops20h 06m

$1,112

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 1/23

12:10 am-7:10 pm

2 stops26h 00m

Jeju City

Sat 1/31

8:25 am-2:38 pm

3 stops23h 13m

$1,149

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Fri 1/23

12:10 am-9:50 am

1 stop16h 40m

Jeju City

Sat 1/31

7:55 am-5:30 pm

2 stops26h 35m

$1,150

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 5/10

1:50 am-9:20 pm

2 stops27h 30m

Jeju City

Wed 5/20

10:20 pm-7:30 pm

2 stops37h 10m

$3,324

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

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	18h 05m
Direct flights	None

The fastest flight from Seattle to Jeju-do takes 18h 05m

There are no direct flights from Seattle to Jeju-do. There are no popular flight routes from Seattle to Jeju-do.

Search flight deals

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.

How do I get Price Alerts for flights from Seattle to Jeju-do?
Price Alerts will notify you by email when the price for flights to Jeju-do from Seattle decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Seattle to Jeju-do with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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.