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.

$1,180 Cheap Flights from Seattle to Jeju-do in 2026

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to Jeju-do

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:15 am - 6:10 am

SEA

CJU

36h 55m

1 stop

10:40 pm - 4:10 pm

CJU

SEA

33h 30m

1 stop

$1,180Multiple Airlines

Tue, Apr 28 - Wed, May 6

12:55 am - 2:00 pm

SEA

CJU

21h 05m

2 stops

10:40 pm - 4:10 pm

CJU

SEA

33h 30m

1 stop

$1,199Multiple Airlines

Tue, Apr 28 - Wed, May 6

1:15 am - 5:30 pm

SEA

CJU

24h 15m

1 stop

10:30 am - 4:10 pm

CJU

SEA

21h 40m

1 stop

$1,218Multiple Airlines

Mon, Apr 27 - Tue, May 5

10:15 am - 7:25 am

SEA

CJU

53h 10m

1 stop

9:30 am - 8:45 am

CJU

SEA

39h 15m

1 stop

$1,248Singapore Airlines

Tue, Aug 18 - Wed, Aug 26

7:35 am - 12:30 pm

SEA

CJU

36h 55m

2 stops

7:10 pm - 6:26 pm

CJU

SEA

39h 16m

2 stops

$1,268China Eastern

Sun, Apr 19 - Thu, Apr 23

10:15 am - 7:25 am

SEA

CJU

53h 10m

1 stop

9:30 am - 8:45 am

CJU

SEA

39h 15m

1 stop

$1,282Singapore Airlines

Tue, Aug 18 - Wed, Aug 26

12:25 pm - 6:30 am

SEA

CJU

26h 05m

1 stop

7:30 am - 10:20 am

CJU

SEA

18h 50m

1 stop

$1,289Cathay Pacific

Tue, Aug 18 - Wed, Aug 26

8:05 pm - 5:30 pm

SEA

CJU

29h 25m

2 stops

10:30 am - 4:10 pm

CJU

SEA

21h 40m

1 stop

$1,453Multiple Airlines

Tue, Apr 28 - Tue, May 5

7:35 am - 12:30 pm

SEA

CJU

36h 55m

2 stops

7:10 pm - 6:26 pm

CJU

SEA

39h 16m

2 stops

$1,743China Eastern

Sun, Apr 19 - Thu, Apr 23

7:35 am - 12:30 pm

SEA

CJU

36h 55m

2 stops

7:10 pm - 6:26 pm

CJU

SEA

39h 16m

2 stops

$1,895China Eastern

Sun, Apr 19 - Thu, Apr 23

Singapore Airlines flights from Seattle to Jeju-do

Our best Singapore Airlines deals on Seattle to Jeju-do flight tickets

Singapore Airlines

Aug 18

SEA10:15 amSeattle/Tacoma Intl

53h 10m

1 stop

CJU7:25 amJeju City

Aug 26

CJU9:30 amJeju City

39h 15m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$1,248

Singapore Airlines

Aug 18

SEA10:15 amSeattle/Tacoma Intl

53h 10m

1 stop

CJU7:25 amJeju City

Aug 26

CJU9:30 amJeju City

39h 15m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$1,282

China Eastern flights from Seattle to Jeju-do

Our best China Eastern deals on Seattle to Jeju-do flight tickets

China Eastern

Apr 19

SEA7:35 amSeattle/Tacoma Intl

36h 55m

2 stops

CJU12:30 pmJeju City

Apr 23

CJU7:10 pmJeju City

39h 16m

2 stops

SEA6:26 pmSeattle/Tacoma Intl

$1,268

China Eastern

Apr 19

SEA7:35 amSeattle/Tacoma Intl

36h 55m

2 stops

CJU12:30 pmJeju City

Apr 23

CJU7:10 pmJeju City

39h 16m

2 stops

SEA6:26 pmSeattle/Tacoma Intl

$1,743

China Eastern

Apr 19

SEA7:35 amSeattle/Tacoma Intl

36h 55m

2 stops

CJU12:30 pmJeju City

Apr 23

CJU7:10 pmJeju City

39h 16m

2 stops

SEA6:26 pmSeattle/Tacoma Intl

$1,895

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 4/28

1:15 am-6:10 am

1 stop36h 55m

Jeju City

Wed 5/6

10:40 pm-4:10 pm

1 stop33h 30m

$1,180

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 4/28

12:55 am-2:00 pm

2 stops21h 05m

Jeju City

Wed 5/6

10:40 pm-4:10 pm

1 stop33h 30m

$1,199

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 4/27

1:15 am-5:30 pm

1 stop24h 15m

Jeju City

Tue 5/5

10:30 am-4:10 pm

1 stop21h 40m

$1,218

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 8/18

10:15 am-7:25 am

1 stop53h 10m

Jeju City

Wed 8/26

9:30 am-8:45 am

1 stop39h 15m

$1,248

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 4/19

7:35 am-12:30 pm

2 stops36h 55m

Jeju City

Thu 4/23

7:10 pm-6:26 pm

2 stops39h 16m

$1,268

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 8/18

10:15 am-7:25 am

1 stop53h 10m

Jeju City

Wed 8/26

9:30 am-8:45 am

1 stop39h 15m

$1,282

Quickest round-trip

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 8/18

12:25 pm-6:30 am

1 stop26h 05m

Jeju City

Wed 8/26

7:30 am-10:20 am

1 stop18h 50m

$1,289

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 4/28

8:05 pm-5:30 pm

2 stops29h 25m

Jeju City

Tue 5/5

10:30 am-4:10 pm

1 stop21h 40m

$1,453

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 4/19

7:35 am-12:30 pm

2 stops36h 55m

Jeju City

Thu 4/23

7:10 pm-6:26 pm

2 stops39h 16m

$1,743

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 4/19

7:35 am-12:30 pm

2 stops36h 55m

Jeju City

Thu 4/23

7:10 pm-6:26 pm

2 stops39h 16m

$1,895

Flights are sorted by cheapest round-trip flights first.

Sorted 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	30h 20m
Direct flights	None

The fastest flight from Seattle to Jeju-do takes 30h 20m

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.