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$350+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
Mar 19 — Mar 261
Thu 3/19
Thu 3/26
1 adult, Economy
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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”

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Cheapflights Tip: The best prices from Seoul to Seattle/Tacoma Intl are usually found in November or December, booked 8 days in advance, depart on a Monday or Thursday 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 February 17, 2026.

This Air Canada deal was found by Cheapflights users on 2/13. 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.
Fri 3/66:55 pm
ICN
-
SEA
1 stop21h 01m
Air Canada
Tue 3/105:40 am
SEA
-
ICN
1 stop18h 35m
Air Canada
Deal found 2/13$483
This Air Canada deal was found by Cheapflights users on 2/14. 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.
Fri 5/85:45 pm
ICN
-
SEA
1 stop16h 45m
Air Canada
Sat 5/167:20 pm
SEA
-
ICN
1 stop28h 45m
Air Canada
Deal found 2/14$485
This Air Canada deal was found by Cheapflights users on 2/17. 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.
Fri 5/85:45 pm
ICN
-
SEA
1 stop12h 35m
Air Canada
Mon 5/185:40 am
SEA
-
ICN
1 stop18h 25m
Air Canada
Deal found 2/17$486
This Hanatour deal was found by Cheapflights users on 2/14. 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 Hanatour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/195:55 pm
ICN
-
SEA
1 stop21h 02m
Air Canada
Sat 3/2810:10 am
SEA
-
ICN
1 stop13h 55m
Air Canada
Deal found 2/14$498
This BusinessClass deal was found by Cheapflights users on 2/16. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/75:45 pm
ICN
-
SEA
1 stop12h 35m
Asiana Airlines
Sun 12/63:05 pm
SEA
-
ICN
1 stop33h 05m
Asiana Airlines
Deal found 2/16$512
This Orbitz deal was found by Cheapflights users on 2/14. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/315:45 pm
ICN
-
SEA
1 stop12h 35m
Air Canada
Fri 11/275:45 am
SEA
-
ICN
1 stop18h 25m
Air Canada
Deal found 2/14$518
This Air Canada deal was found by Cheapflights users on 2/14. 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 4/155:45 pm
ICN
-
SEA
1 stop13h 20m
Air Canada
Wed 4/228:00 pm
SEA
-
ICN
1 stop28h 05m
Air Canada
Deal found 2/14$519
This Air Canada deal was found by Cheapflights users on 2/16. 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 3/225:55 pm
ICN
-
SEA
1 stop13h 06m
Air Canada
Sun 4/195:40 am
SEA
-
ICN
1 stop18h 25m
Air Canada
Deal found 2/16$520
This Flightnetwork deal was found by Cheapflights users on 2/14. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:55 pm
ICN
-
SEA
1 stop17h 21m
Air Canada
Wed 3/48:00 pm
SEA
-
ICN
1 stop28h 10m
Air Canada
Deal found 2/14$530
This Air Canada deal was found by Cheapflights users on 2/14. 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.
Thu 2/196:55 pm
ICN
-
SEA
1 stop17h 21m
Air Canada
Tue 4/148:00 pm
SEA
-
ICN
1 stop28h 05m
Air Canada
Deal found 2/14$534
This Gotogate deal was found by Cheapflights users on 2/16. 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 6/308:10 am
GMP
-
SEA
2 stops26h 22m
Multiple Airlines
Fri 7/109:55 am
SEA
-
GMP
2 stops20h 30m
Multiple Airlines
Deal found 2/16$802
This FlightHub deal was found by Cheapflights users on 2/15. 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.
Mon 3/162:00 pm
GMP
-
SEA
2 stops17h 01m
Multiple Airlines
Sun 4/1210:20 am
SEA
-
GMP
2 stops20h 05m
Multiple Airlines
Deal found 2/15$844

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 February 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$483
(Air Canada)

One-way from

$350
(Trip.com)

Popular in

August

Cheapest in

November

Average price

$630

Good round-trip deal

$710 or less

Good one-way deal

$635 or less
Provider with most accurate pricing for Seoul (SEL)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Seattle/Tacoma Intl flights.
Search Deals
From Seoul (SEL) to Seattle/Tacoma Intl
Search Deals
One-way flight from Seoul (SEL) to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Seoul (SEL) to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Seoul (SEL) to Seattle/Tacoma Intl.
Search Deals

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 February 17, 2026.
Use the filters below to find and compare flights from Seoul to Seattle that are best for you.

Fly from

Seoul

Fly to

Seattle

Route

Depart

Return

Price

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 3/16

5:55 pm-7:16 pm

1 stop17h 21m

Seattle/Tacoma Intl

Sun 3/29

5:50 am-4:05 pm

1 stop18h 15m

$592

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 4/29

7:35 pm-1:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Sun 5/10

1:40 pm-5:30 pm

Nonstop11h 50m

$674

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 5/7

7:35 pm-1:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Thu 6/25

1:45 pm-5:30 pm

Nonstop11h 45m

$677

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 4/16

8:35 pm-2:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Thu 4/23

1:40 pm-5:30 pm

Nonstop11h 50m

$678

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 4/16

8:35 pm-2:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Mon 4/20

2:45 pm-6:35 pm

Nonstop11h 50m

$678

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 4/16

8:35 pm-2:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Fri 4/24

1:40 pm-5:30 pm

Nonstop11h 50m

$678

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Sun 6/7

7:35 pm-1:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Sun 12/6

12:40 pm-5:35 pm

Nonstop11h 55m

$678

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 4/16

7:00 pm-1:07 pm

Nonstop10h 07m

Seattle/Tacoma Intl

Tue 4/21

12:50 pm-4:40 pm

Nonstop11h 50m

$699

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 4/23

7:00 pm-1:07 pm

Nonstop10h 07m

Seattle/Tacoma Intl

Thu 5/7

7:17 am-5:20 pm

1 stop18h 03m

$715

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Sun 5/17

7:00 pm-1:11 pm

Nonstop10h 11m

Seattle/Tacoma Intl

Sun 8/2

7:20 am-5:20 pm

1 stop18h 00m

$715

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 43 results
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 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 February 13, 2026.

To ensure you get the cheapest price possible for a flight from Seoul to Seattle, you should look to book at least 8 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 $662). 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 February 17, 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 February 17, 2026.

The most flights from SEL to SEA are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

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

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 February 17, 2026.
Peruse reviews from past customers who have flown with Korean Air, Asiana Airlines, and Alaska 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.
Korean Air
8.4
Very good
1,191 reviews

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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!!
Korean Air
8.4
Very good
1,191 reviews
Korean Air
8.4
Very good
1,191 reviews

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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!!
Asiana Airlines
8.1
Very good
504 reviews
Korean Air
8.4
Very good
1,191 reviews

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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!!
Alaska Airlines
8.0
Very good
11,890 reviews
Korean Air
8.4
Very good
1,191 reviews

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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!!
Delta
7.9
Good
8,206 reviews
Korean Air
8.4
Very good
1,191 reviews

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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!!
Hawaiian Airlines
7.8
Good
2,833 reviews
Korean Air
8.4
Very good
1,191 reviews

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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 6 different airlines.

  • How long is the flight from Seoul to Seattle?

    Air Canada, Alaska Airlines, and ANA can get you from Seoul to Seattle in just under 10h. Your travel time can differ by up to 12h 45m. 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), Asiana Airlines ($466), and Korean Air ($469) offers the cheapest pricing from Seoul to Seattle. You may be able to fly from Seoul to Seattle for 47% 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 $405 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 (75%), Hawaiian Airlines (75%) and Delta (67%).

  • What are the cheapest flights from Seoul to Seattle?

    Looking for the cheapest flight from Seoul to Seattle? While on average our users pay $1,545, our data indicates the cheapest price to be $446. The most popular route (Incheon Intl - Seattle/Tacoma Intl), is priced around $548.

  • 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 $662). 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
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Edmonds
Lacey
Kent
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

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.
Incheon Intl to Seattle flights
Incheon Intl to Portland flights
Gimpo Intl to Portland flights
Busan to Seattle flights
Incheon Intl to Spokane flights
Busan to Portland flights

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 February 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$351Average$866FlexibilityNo cancel feeOn-time85%
Asiana AirlinesCheapest$466Average$641FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$469Average$731FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$472Average$556FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$476Average$583FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$516Average$646FlexibilityNo cancel feeOn-time69%
DeltaCheapest$606Average$684FlexibilityNo cancel feeOn-timeN/A

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