Seattle

$444+ Cheap flights from Seoul (SEL) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
May 12 — May 191
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Find cheap flights from Seoul to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Seoul to Seattle/Tacoma Intl are usually found in November or December, booked 53 days in advance, depart on a Monday or Sunday and return on a Wednesday

Cheap flight deals from Seoul to Seattle

Cheapest flights from Seoul to Seattle
Explore the most affordable flight options available from Seoul to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 12, 2026.

This Priceline deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:45 pm
ICN
-
SEA
1 stop20h 57m
Air Canada
Sun 11/83:05 pm
SEA
-
ICN
1 stop33h 05m
Air Canada
Deal found 4/11$800
This Expedia deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:45 pm
ICN
-
SEA
1 stop16h 47m
Air Canada
Sat 10/315:45 am
SEA
-
ICN
1 stop18h 25m
Air Canada
Deal found 4/11$817
This WhyPayMore deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:45 pm
ICN
-
SEA
1 stop16h 48m
Air Canada
Mon 9/75:45 am
SEA
-
ICN
1 stop18h 20m
Air Canada
Deal found 4/10$820
This Air Canada deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:45 pm
ICN
-
SEA
1 stop20h 57m
Air Canada
Sat 10/247:20 pm
SEA
-
ICN
1 stop28h 50m
Air Canada
Deal found 4/9$828
This Gotogate deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:40 am
GMP
-
SEA
2 stops26h 52m
ANA
Wed 9/24:30 pm
SEA
-
GMP
1 stop26h 35m
ANA
Deal found 4/6$836
This Air Canada deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:45 pm
ICN
-
SEA
1 stop20h 57m
Air Canada
Wed 11/185:45 am
SEA
-
ICN
1 stop18h 25m
Air Canada
Deal found 4/7$840
This Gotogate deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:55 pm
GMP
-
SEA
2 stops38h 38m
ANA
Mon 9/74:30 pm
SEA
-
GMP
1 stop34h 05m
ANA
Deal found 4/10$841
This Gotogate deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:40 am
GMP
-
SEA
2 stops26h 52m
ANA
Tue 8/254:30 pm
SEA
-
GMP
1 stop34h 05m
ANA
Deal found 4/10$842
This Air Canada deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:45 pm
ICN
-
SEA
1 stop20h 57m
Air Canada
Wed 10/285:45 am
SEA
-
ICN
1 stop18h 25m
Air Canada
Deal found 4/9$853
This FlightHub deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:40 pm
GMP
-
SEA
1 stop17h 45m
ANA
Tue 11/173:40 pm
SEA
-
GMP
1 stop26h 40m
ANA
Deal found 4/7$859
This FlightHub deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:40 pm
GMP
-
SEA
1 stop17h 45m
ANA
Thu 10/294:40 pm
SEA
-
GMP
1 stop26h 40m
ANA
Deal found 4/9$864
This Gotogate deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:55 pm
GMP
-
SEA
1 stop34h 30m
ANA
Tue 9/154:30 pm
SEA
-
GMP
1 stop34h 05m
ANA
Deal found 4/10$866

Find flight deals from Seoul to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$820
(WhyPayMore)

One-way from

$444
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$773

Good round-trip deal

$754 or less

Good one-way deal

$613 or less
Provider with most accurate pricing for Seoul (SEL)-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Seoul (SEL)-Seattle/Tacoma Intl flights.
From Seoul (SEL) to Seattle/Tacoma Intl
One-way flight from Seoul (SEL) to Seattle/Tacoma Intl
Highest demand for flights based on searches. 10% potential increase in price ($80 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from Seoul (SEL) to Seattle/Tacoma Intl.
Price to beat on a one-way flight from Seoul (SEL) to Seattle/Tacoma Intl.

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 12, 2026.
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

Cheapest round-trip

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 5/6

11:30 am-9:06 pm

3 stops25h 36m

Seattle/Tacoma Intl

Wed 5/13

7:08 am-3:00 pm

1 stop15h 52m

$987

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Sun 7/19

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Sun 8/9

4:30 pm-11:05 am

1 stop26h 35m

$1,058

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Sun 7/19

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Sat 7/25

4:30 pm-11:05 am

1 stop26h 35m

$1,087

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 6/22

12:40 pm-6:32 pm

2 stops21h 52m

Seattle/Tacoma Intl

Wed 9/2

8:38 am-10:20 pm

2 stops21h 42m

$1,090

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 6/9

12:40 pm-6:33 pm

2 stops21h 53m

Seattle/Tacoma Intl

Tue 9/15

8:38 am-10:20 pm

2 stops21h 42m

$1,105

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Fri 5/22

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Fri 5/29

4:30 pm-11:05 am

1 stop26h 35m

$1,145

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Sun 6/28

7:40 am-6:32 pm

2 stops26h 52m

Seattle/Tacoma Intl

Wed 7/15

4:30 pm-11:05 am

1 stop26h 35m

$1,170

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 5/1

4:50 pm-1:12 am

1 stop24h 22m

Seattle/Tacoma Intl

Mon 8/24

5:22 pm-4:20 am

1 stop18h 58m

$1,173

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 5/29

9:05 pm-10:58 pm

1 stop17h 53m

Seattle/Tacoma Intl

Tue 6/16

1:05 pm-4:50 pm

Nonstop11h 45m

$1,195

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 5/7

9:05 pm-10:58 pm

1 stop17h 53m

Seattle/Tacoma Intl

Thu 6/25

7:59 am-5:40 pm

1 stop17h 41m

$1,216

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/7

Showing 1-10 of 46 resultsSorted by cheapest first
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Compare providers for flights from Seoul to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seoul to Seattle in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seoul-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seoul-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seoul to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Seoul with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seoul to Seattle

How far ahead should I book a flight from Seoul to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Seoul to Seattle. Price data was last updated on April 10, 2026.

To ensure you get the cheapest price possible for a flight from Seoul to Seattle, you should look to book at least 53 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seoul to Seattle?

Currently, November is the cheapest month in which you can book a flight from Seoul to Seattle (average of $338). Flying from Seoul to Seattle in August is currently the most expensive (average of $659). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEL to SEA?

Find hourly flight availability from Seoul to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 12, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seoul to Seattle as you normally would.

Weekly flight availability from Seoul to Seattle

Explore weekly flight availability from Seoul to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 12, 2026.

The most flights from SEL to SEA are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from Seoul to Seattle?

What’s the top layover airport for flights from Seoul to Seattle?

Share of 1-stop round-trip flights from Seoul to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.

Vancouver (YVR) – chosen by Cheapflights users on 85% of 1-stop itineraries from Seoul to Seattle on Cheapflights.

What’s the cheapest layover airport for flights from Seoul to Seattle?

Average round-trip fare for 1-stop flights from Seoul to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Vancouver (YVR) is the most affordable 1-stop option, with an average round-trip price of $569.

What’s the fastest layover option from Seoul to Seattle?

Shortest average travel time for 1-stop one-way flights from Seoul to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Vancouver (YVR) have the shortest average one-way travel time for 1-stop routes: 14h 10m.

Which airport typically offers the quickest layover for flights from Seoul to Seattle?

Average layover duration for 1-stop one-way flights from Seoul to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via San Francisco (SFO) offer the fastest connection on this route, with an average layover time of 2h 06m.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated April 12, 2026.
Peruse reviews from past customers who have flown with Korean Air,Asiana Airlines, andAlaska Airlines from Seoul to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.7

Overall

8.4

Comfort

8.3

Boarding

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Crew

8.7

Overall

8.4

Comfort

8.3

Boarding

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Crew

8.7

Overall

8.4

Comfort

8.3

Boarding

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Crew

8.7

Overall

8.4

Comfort

8.3

Boarding

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Crew

8.7

Overall

8.4

Comfort

8.3

Boarding

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Crew

8.7

Overall

8.4

Comfort

8.3

Boarding

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Seoul to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Seattle from Seoul?

    If you book a flight to Seattle from Seoul, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 8 flights from Seoul to Seattle/Tacoma Intl per day from 7 different airlines.

  • How long is the flight from Seoul to Seattle?

    United Airlines, ANA, and Korean Air can get you from Seoul to Seattle in just under 17h 53m. Your travel time can differ by up to 7h 43m. Seoul and Seattle are separated by a distance of 5200 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Seoul to Seattle round-trip?

    According to our current data, Hawaiian Airlines ($351), Air Canada ($472), and Alaska Airlines ($476) offers the cheapest pricing from Seoul to Seattle. You may be able to fly from Seoul to Seattle for 48% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seoul to Seattle one-way?

    To fly one-way, consider booking your trip with Hawaiian Airlines, which is currently one of the cheapest options available, starting at $309. Air Canada flights start at $351 while deals on Asiana Airlines start at $402 one-way.

  • What are the most reliable airlines from Seoul to Seattle?

    The top 3 most reliable airlines when flying from Seoul to Seattle are Alaska Airlines (86%), Hawaiian Airlines (86%) and Delta (70%).

  • What are the cheapest flights from Seoul to Seattle?

    Looking for the cheapest flight from Seoul to Seattle? While on average our users pay $1,559, our data indicates the cheapest price to be $499. The most popular route (Incheon Intl - Seattle/Tacoma Intl), is priced around $983.

  • Can I find deals for flights from Seoul to Seattle that include hotel bookings?

    Yes. In addition to deals on Seoul to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Seattle.

  • Can I find deals for business class flights from Seoul to Seattle?

    Yes. Cheapflights offers flight deals from Seoul to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seoul to Seattle?

    Currently, November is the cheapest month in which you can book a flight from Seoul to Seattle (average of $338). Flying from Seoul to Seattle in August is currently the most expensive (average of $659). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Ocean Shores
Olympia
Kent
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Renton
Puyallup
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seoul to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Seoul to Seattle

Discover the top 7 airlines that operate flights from Seoul to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$351Average$866FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$472Average$501FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$476Average$590FlexibilityNo cancel feeOn-time75%
Asiana AirlinesCheapest$477Average$619FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$483Average$744FlexibilityNo cancel feeOn-time81%
DeltaCheapest$485Average$728FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$583Average$638FlexibilityNo cancel feeOn-timeN/A

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