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Cheap flights from Seoul to Seattle from $322

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to Seattle departing on 2/8. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Korean Air Logo
4:10 pm - 9:00 am
ICN
-
SEA
9h 50mnonstop
Korean Air Logo
11:25 am - 4:30 pm
SEA
-
ICN
12h 05mnonstop
$434Korean Air
Mon, Jan 19 - Mon, Feb 16
Air Canada Logo
5:55 pm - 9:31 am
ICN
-
SEA
32h 36m1 stop
Air Canada Logo
3:40 pm - 5:10 pm
SEA
-
ICN
32h 30m1 stop
$527Air Canada
Fri, Feb 6 - Sat, Feb 21
Air Canada Logo
6:55 pm - 2:31 pm
ICN
-
SEA
12h 36m1 stop
Air Canada Logo
10:05 am - 5:10 pm
SEA
-
ICN
14h 05m1 stop
$528Air Canada
Sat, Feb 7 - Sun, Feb 22
Air Canada Logo
6:55 pm - 10:06 pm
ICN
-
SEA
20h 11m1 stop
Air Canada Logo
5:50 am - 5:10 pm
SEA
-
ICN
18h 20m1 stop
$546Air Canada
Mon, Feb 2 - Fri, Feb 20
Air Canada Logo
5:55 pm - 7:16 pm
ICN
-
SEA
18h 21m1 stop
Air Canada Logo
8:00 pm - 5:10 pm
SEA
-
ICN
28h 10m1 stop
$551Air Canada
Fri, Jan 30 - Sat, Jan 31
United Airlines Logo
12:45 pm - 12:59 am
ICN
-
SEA
29h 14m1 stop
United Airlines Logo
1:35 pm - 5:40 am
SEA
-
ICN
23h 05m1 stop
$559United Airlines
Wed, Dec 24 - Mon, Jan 5
United Airlines Logo
6:00 pm - 11:16 pm
ICN
-
SEA
22h 16m2 stops
United Airlines Logo
12:25 pm - 5:40 am
SEA
-
ICN
24h 15m2 stops
$560United Airlines
Fri, Jan 30 - Sat, Jan 31
United Airlines Logo
12:45 pm - 4:29 pm
ICN
-
SEA
20h 44m2 stops
United Airlines Logo
7:29 pm - 5:40 am
SEA
-
ICN
17h 11m1 stop
$573United Airlines
Tue, Feb 10 - Tue, Feb 17
ANA Logo
12:25 pm - 7:16 pm
GMP
-
SEA
23h 51m2 stops
ANA Logo
3:45 pm - 6:35 pm
SEA
-
GMP
33h 50m1 stop
$804ANA
Tue, Feb 3 - Wed, Feb 4
ANA Logo
12:25 pm - 7:16 pm
GMP
-
SEA
23h 51m2 stops
ANA Logo
10:05 am - 10:30 pm
SEA
-
GMP
19h 25m2 stops
$828ANA
Tue, Feb 3 - Wed, Feb 4

ANA flights from Seoul to Seattle

Our best ANA deals on Seoul to Seattle flight tickets
ANA
Jun 8
GMP12:40 pmSeoul Gimpo Intl
21h 50m
2 stops
SEA6:30 pmSeattle/Tacoma Intl
Jun 15
SEA4:30 pmSeattle/Tacoma Intl
26h 35m
1 stop
GMP11:05 amSeoul Gimpo Intl
$839
Find similar
ANA
Jan 26
GMP7:50 pmSeoul Gimpo Intl
40h 26m
2 stops
SEA7:16 pmSeattle/Tacoma Intl
Sep 21
SEA4:30 pmSeattle/Tacoma Intl
34h 05m
1 stop
GMP6:35 pmSeoul Gimpo Intl
$840
Find similar
ANA
Jan 26
GMP7:45 amSeoul Gimpo Intl
22h 35m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
Feb 23
SEA3:45 pmSeattle/Tacoma Intl
33h 50m
1 stop
GMP6:35 pmSeoul Gimpo Intl
$872
Find similar

Japan Airlines flights from Seoul to Seattle

Our best Japan Airlines deals on Seoul to Seattle flight tickets
Japan Airlines
Mar 3
GMP12:05 pmSeoul Gimpo Intl
14h 50m
1 stop
SEA9:55 amSeattle/Tacoma Intl
Mar 13
SEA1:30 pmSeattle/Tacoma Intl
29h 25m
1 stop
GMP10:55 amSeoul Gimpo Intl
$1,236
Find similar
Japan Airlines
Dec 23
GMP8:00 amSeoul Gimpo Intl
42h 17m
2 stops
SEA9:17 amSeattle/Tacoma Intl
Feb 4
SEA11:43 amSeattle/Tacoma Intl
41h 22m
2 stops
GMP10:05 pmSeoul Gimpo Intl
$1,380
Find similar
Japan Airlines
Feb 7
GMP12:05 pmSeoul Gimpo Intl
14h 50m
1 stop
SEA9:55 amSeattle/Tacoma Intl
Feb 14
SEA12:30 pmSeattle/Tacoma Intl
16h 35m
1 stop
GMP10:05 pmSeoul Gimpo Intl
$1,390
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seoul to Seattle 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 December 11, 2025.
Use the filters below to find and compare flights from Seoul to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 1/19

4:10 pm-9:00 am

Nonstop9h 50m

Seattle/Tacoma Intl

Mon 2/16

11:25 am-4:30 pm

Nonstop12h 05m

$434

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 2/6

5:55 pm-9:31 am

1 stop32h 36m

Seattle/Tacoma Intl

Sat 2/21

3:40 pm-5:10 pm

1 stop32h 30m

$527

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Sat 2/7

6:55 pm-2:31 pm

1 stop12h 36m

Seattle/Tacoma Intl

Sun 2/22

10:05 am-5:10 pm

1 stop14h 05m

$528

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 2/2

6:55 pm-10:06 pm

1 stop20h 11m

Seattle/Tacoma Intl

Fri 2/20

5:50 am-5:10 pm

1 stop18h 20m

$546

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 1/30

5:55 pm-7:16 pm

1 stop18h 21m

Seattle/Tacoma Intl

Sat 1/31

8:00 pm-5:10 pm

1 stop28h 10m

$551

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 12/24

12:45 pm-12:59 am

1 stop29h 14m

Seattle/Tacoma Intl

Mon 1/5

1:35 pm-5:40 am

1 stop23h 05m

$559

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 1/30

6:00 pm-11:16 pm

2 stops22h 16m

Seattle/Tacoma Intl

Sat 1/31

12:25 pm-5:40 am

2 stops24h 15m

$560

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 2/10

12:45 pm-4:29 pm

2 stops20h 44m

Seattle/Tacoma Intl

Tue 2/17

7:29 pm-5:40 am

1 stop17h 11m

$573

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 2/3

12:25 pm-7:16 pm

2 stops23h 51m

Seattle/Tacoma Intl

Wed 2/4

3:45 pm-6:35 pm

1 stop33h 50m

$804

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 2/3

12:25 pm-7:16 pm

2 stops23h 51m

Seattle/Tacoma Intl

Wed 2/4

10:05 am-10:30 pm

2 stops19h 25m

$828

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 Seattle from

How to get the cheapest flight ticket from Seoul to Seattle

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 month to fly to Seattle?

In general, November is the cheapest month to fly from Seoul to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $556. If you don’t want to visit Seattle in November, then you should wait until September to fly from Seoul, when ticket prices are also cheap, with an average price of $591.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Seoul is on a Thursday. momondo users have found tickets for Thursday departures for as low as $722. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Seoul because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $899.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Seoul in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $766 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $922. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Seoul to Seattle/Tacoma Intl flight route?

Fly from Incheon Intl to Seattle/Tacoma Intl for the best Seoul - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $701 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Seoul for as low as $551 on momondo.

What cabin class options are available on Seoul to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Seoul to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seoul to Seattle flights?

You could potentially save up to 23% on your flight if you consider stops on a Seoul to Seattle flight.

How have Seoul to Seattle flight prices changed over time?

As of December 2025, prices for Seoul to Seattle flights are approximately 58% cheaper when compared to flights at the same time last year.

When to book flights from Seoul to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seoul to Seattle (SEL to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to Seattle

Best Price Found

$617

Fastest flight time

9h 50m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Seoul in the past 72 hours is $617. The best round-trip flight deal from Seoul to Seattle found on momondo in the last 72 hours is $567.
The fastest flight from Seoul to Seattle takes 9h 50m
Direct flights go from Seoul to Seattle every day.
There is 1 airport in Seattle. From Seoul there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • How far is Seoul to Seattle/Tacoma Intl by plane?

    A flight from Seoul to Seattle/Tacoma Intl will travel around 5167.4 mi. By plane, this route typically takes 9h 50m.

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

    Prices for flights from Seoul to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Seoul to Seattle/Tacoma Intl Airport?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seoul to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Seoul to Seattle?

  • What is the most popular airline from Seoul to Seattle?

Best airlines flying from Seoul to Seattle

Compare and see reviews for airlines that fly from Seoul to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $352Free CancellationRating
7.8
2,818 reviews
Search Hawaiian Airlines flights
Asiana AirlinesPriceFrom $466Free CancellationRating
8.2
492 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $470Free CancellationRating
8.4
1,184 reviews
Search Korean Air flights
Air CanadaPriceFrom $472Free CancellationRating
7.1
10,514 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom $476Free CancellationRating
8.0
11,431 reviews
Search Alaska Airlines flights
DeltaPriceFrom $606Free CancellationRating
7.9
8,005 reviews
Search Delta flights

  • Korean Air Flights From Seoul to Seattle

    Korean Air operates around 13 flights from Seoul to Seattle every week. The average price of these flights found in the last 72 hours has been $729, but momondo users have found Korean Air deals from Seoul to Seattle from as low as $470 round-trip. Korean Air has been scored 8.4/10 in 1,184 reviews.

  • Asiana Airlines Flights From Seoul to Seattle

    Another popular option for Seoul to Seattle flights is Asiana Airlines (8.2/10, 492 ratings). Asiana Airlines flies from Seoul to Seattle around 1 time per week, with deals starting from $466 round-trip and rising to an average price of around $667.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Puyallup
Marysville
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Westport
Kirkland
Centralia
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seoul to Seattle for you.

Can I find flights from Seoul to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Seoul which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seoul to Seattle?

Once all potential Seoul to Seattle 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 Seoul to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from Seoul are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Seattle trip

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