Seattle

$234+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
Jul 25 — Aug 11
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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 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 June 25, 2026.

This Philippine Airlines deal was found by Cheapflights users on 6/23. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:20 am
ICN
-
SEA
1 stop28h 45m
Philippine Airlines
Tue 10/1311:10 pm
SEA
-
ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/23$781
This Philippine Airlines deal was found by Cheapflights users on 6/24. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:30 pm
ICN
-
SEA
1 stop39h 35m
Philippine Airlines
Sun 7/511:10 pm
SEA
-
ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/24$782
This Philippine Airlines deal was found by Cheapflights users on 6/21. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/57:20 am
ICN
-
SEA
1 stop28h 45m
Philippine Airlines
Wed 7/811:10 pm
SEA
-
ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/21$783
This Philippine Airlines deal was found by Cheapflights users on 6/20. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:30 pm
ICN
-
SEA
1 stop39h 35m
Philippine Airlines
Tue 9/2211:10 pm
SEA
-
ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/20$784
This Philippine Airlines deal was found by Cheapflights users on 6/23. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:30 pm
ICN
-
SEA
1 stop39h 35m
Philippine Airlines
Thu 2/1811:55 pm
SEA
-
ICN
1 stop26h 20m
Philippine Airlines
Deal found 6/23$786
This Cheapflightsfares deal was found by Cheapflights users on 6/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:20 am
ICN
-
SEA
1 stop28h 45m
Philippine Airlines
Fri 10/911:10 pm
SEA
-
ICN
1 stop28h 05m
Philippine Airlines
Deal found 6/24$798
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:20 am
ICN
-
SEA
1 stop28h 45m
Philippine Airlines
Wed 11/411:55 pm
SEA
-
ICN
1 stop26h 20m
Philippine Airlines
Deal found 6/25$799
This Gotogate deal was found by Cheapflights users on 6/25. 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 9/288:30 pm
ICN
-
SEA
1 stop39h 35m
Philippine Airlines
Thu 10/811:10 pm
SEA
-
ICN
1 stop38h 50m
Philippine Airlines
Deal found 6/25$805
This Gotogate deal was found by Cheapflights users on 6/23. 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 7/77:20 am
ICN
-
SEA
1 stop28h 45m
Philippine Airlines
Thu 7/1611:10 pm
SEA
-
ICN
1 stop38h 50m
Philippine Airlines
Deal found 6/23$807
This Gotogate deal was found by Cheapflights users on 6/25. 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 9/218:30 pm
ICN
-
SEA
1 stop39h 35m
Philippine Airlines
Fri 10/3011:55 pm
SEA
-
ICN
1 stop38h 00m
Philippine Airlines
Deal found 6/25$808
This Gotogate deal was found by Cheapflights users on 6/23. 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 7/68:10 am
GMP
-
SEA
2 stops26h 22m
Multiple Airlines
Mon 7/1310:45 am
SEA
-
GMP
2 stops19h 40m
Multiple Airlines
Deal found 6/23$986
This modetour deal was found by Cheapflights users on 6/23. 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 modetour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:10 am
GMP
-
SEA
2 stops41h 57m
Multiple Airlines
Sun 7/123:00 pm
SEA
-
GMP
2 stops54h 10m
Multiple Airlines
Deal found 6/23$987

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 June 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$781
(Philippine Airlines)

One-way from

$234
(iWofly)

Popular in

June

Cheapest in

November

Average price

$1,113

Good round-trip deal

$1,480 or less

Good one-way deal

$643 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. 18% potential increase in price ($159 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
Average for round-trip flights in June 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 June 25, 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

Sat 8/22

8:30 pm-8:05 pm

1 stop39h 35m

Seattle/Tacoma Intl

Sun 8/30

11:10 pm-7:15 pm

1 stop28h 05m

$922

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 12/14

7:20 am-6:35 pm

1 stop28h 15m

Seattle/Tacoma Intl

Mon 12/14

11:55 pm-5:55 am

1 stop37h 00m

$923

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 8/5

8:30 pm-8:05 pm

1 stop39h 35m

Seattle/Tacoma Intl

Thu 8/20

11:10 pm-6:00 am

1 stop38h 50m

$925

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 8/20

4:50 pm-9:41 pm

2 stops20h 51m

Seattle/Tacoma Intl

Tue 8/25

4:45 pm-4:20 am

2 stops19h 35m

$964

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 7/7

11:30 am-7:03 pm

2 stops23h 33m

Seattle/Tacoma Intl

Tue 7/21

1:30 pm-4:20 am

1 stop22h 50m

$982
Quickest round-trip

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 11/5

8:00 pm-12:55 pm

Nonstop9h 55m

Seattle/Tacoma Intl

Wed 11/11

12:40 pm-5:35 pm

Nonstop11h 55m

$1,018

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 8/5

11:30 am-1:29 am

1 stop29h 59m

Seattle/Tacoma Intl

Thu 8/20

12:15 pm-4:20 am

2 stops24h 05m

$1,051

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 11/3

4:10 pm-9:00 am

Nonstop9h 50m

Seattle/Tacoma Intl

Wed 11/11

5:40 pm-5:40 pm

1 stop31h 00m

$1,057

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 10/27

6:45 pm-12:51 pm

Nonstop10h 06m

Seattle/Tacoma Intl

Tue 11/3

5:40 pm-5:40 pm

1 stop31h 00m

$1,060

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 8/20

4:10 pm-6:00 am

1 stop29h 50m

Seattle/Tacoma Intl

Tue 8/25

9:40 pm-5:20 pm

1 stop27h 40m

$1,079

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/23

Showing 1-10 of 42 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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 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

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

Currently, August is the cheapest month in which you can book a flight from Seoul to Seattle (average of $143). Flying from Seoul to Seattle in October is currently the most expensive (average of $1,042). 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 June 25, 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 June 25, 2026.

The most flights from SEL to SEA are scheduled on a Thursday (9 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 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.

How often are flights from Seoul to Seattle delayed?

About 0% of weekly flights between Seoul and Seattle have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for Seoul to Seattle flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

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

To ensure you get the cheapest price possible for a flight from Seoul to Seattle, you should look to book at least 9 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.

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 June 25, 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.

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

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!!

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

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!!

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

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!!

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

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!!

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

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!!

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

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 7 flights from Seoul to Seattle/Tacoma Intl per day from 6 different airlines.

  • How long is the flight from Seoul to Seattle?

    Philippine Airlines, United Airlines, and ANA can get you from Seoul to Seattle in just under 20h 15m. Your travel time can differ by up to 8h 30m. 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), Korean Air ($468), and Air Canada ($472) offers the cheapest pricing from Seoul to Seattle. You may be able to fly from Seoul to Seattle for 51% 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 Air Canada, which is currently one of the cheapest options available, starting at $343. Hawaiian Airlines flights start at $373 while deals on Asiana Airlines start at $383 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 Delta (89%), Korean Air (89%) and Alaska Airlines (58%).

  • What are the cheapest flights from Seoul to Seattle?

    Looking for the cheapest flight from Seoul to Seattle? While on average our users pay $1,832, our data indicates the cheapest price to be $543. The most popular route (Incheon Intl - Seattle/Tacoma Intl), is priced around $782.

  • 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, August is the cheapest month in which you can book a flight from Seoul to Seattle (average of $143). Flying from Seoul to Seattle in October is currently the most expensive (average of $1,042). 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
Lacey
Leavenworth
Olympia
Ocean Shores
Renton
Edmonds
Snoqualmie
Tumwater
Tukwila
Kent
Lynnwood
Ellensburg
Fife
Marysville
Lakewood
Issaquah
Shoreline
Centralia

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 6 airlines flying from Seoul to Seattle

Discover the top 6 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 June 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$351Average$866FlexibilityNo cancel feeOn-time85%
Korean AirCheapest$468Average$746FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$472Average$518FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$476Average$663FlexibilityNo cancel feeOn-time75%
DeltaCheapest$484Average$728FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$512Average$614FlexibilityNo cancel feeOn-time76%

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