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$343+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
1월 26 — 2월 21
일 1/26
일 2/2
1 adult, Economy
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The best prices from Seoul to Seattle/Tacoma Intl are usually found in November or October, booked 85 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap 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 1월 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$685
(Delta)

One-way from

$343
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$888

Good round-trip deal

$819 or less

Good one-way deal

$700 or less
Provider with most accurate pricing for Seoul (SEL)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Seoul (SEL)-Seattle/Tacoma Intl flights.
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From Seoul (SEL) to Seattle/Tacoma Intl
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One-way flight from Seoul (SEL) to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 16% potential increase in price ($205 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Price to beat on a round-trip flight from Seoul (SEL) to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Seoul (SEL) to Seattle/Tacoma Intl.
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Find 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 1월 21, 2025.

This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 2/178:05 pmICN - SEA
Nonstop10h 25mDelta
월 2/2410:44 amSEA - ICN
Nonstop12h 31mDelta
Deal found 1/21$685
This NaeilTour deal was found by Cheapflights users on 1/21. 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 NaeilTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 3/144:55 pmICN - SEA
1 stop118h 05mAir Canada
수 3/197:05 pmSEA - ICN
1 stop28h 20mAir Canada
Deal found 1/21$688
This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 2/176:00 pmICN - SEA
1 stop17h 29mUnited Airlines
월 2/247:32 pmSEA - ICN
1 stop17h 08mUnited Airlines
Deal found 1/21$690
This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 2/196:15 pmICN - SEA
Nonstop9h 40mAsiana Airlines
토 2/2212:45 pmSEA - ICN
Nonstop12h 05mAsiana Airlines
Deal found 1/21$697
This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 2/54:10 pmICN - SEA
Nonstop9h 50mKorean Air
수 2/1911:00 amSEA - ICN
Nonstop11h 55mKorean Air
Deal found 1/21$700
This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 2/510:35 pmICN - SEA
2 stops26h 25mHainan Airlines
목 3/610:00 amSEA - ICN
2 stops42h 30mHainan Airlines
Deal found 1/21$710
This Air Canada deal was found by Cheapflights users on 1/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
목 5/15:45 pmICN - SEA
1 stop12h 28mMultiple Airlines
월 5/1210:00 amSEA - ICN
2 stops19h 40mMultiple Airlines
Deal found 1/21$713
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 2/126:50 pmICN - SEA
2 stops33h 09mAmerican Airlines
화 2/2512:43 amSEA - ICN
1 stop23h 02mAmerican Airlines
Deal found 1/20$726
This FlightHub deal was found by Cheapflights users on 1/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 10/157:55 pmGMP - SEA
2 stops38h 41mANA
목 10/304:40 pmSEA - GMP
1 stop33h 55mANA
Deal found 1/21$756
This Hawaiian Airlines deal was found by Cheapflights users on 1/21. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 10/159:25 pmICN - SEA
1 stop16h 20mHawaiian Airlines
목 10/308:15 amSEA - ICN
1 stop19h 10mHawaiian Airlines
Deal found 1/21$838
This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 4/2212:35 pmICN - SEA
1 stop22h 55mChina Airlines
월 5/51:10 amSEA - ICN
1 stop26h 25mChina Airlines
Deal found 1/21$879
This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 3/211:50 pmGMP - SEA
1 stop21h 20mEVA Air
일 3/231:10 amSEA - GMP
1 stop24h 50mEVA Air
Deal found 1/21$1,048

Find flights from Seoul to Seattle within your budget

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 1월 21, 2025.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

월 2/17

8:05 pm-1:30 pm

Nonstop10h 25m

Seattle/Tacoma Intl

월 2/24

10:44 am-4:15 pm

Nonstop12h 31m

$685

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

금 3/14

4:55 pm-11:00 pm

1 stop118h 05m

Seattle/Tacoma Intl

수 3/19

7:05 pm-3:25 pm

1 stop28h 20m

$688

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

월 2/17

6:00 pm-6:29 pm

1 stop17h 29m

Seattle/Tacoma Intl

월 2/24

7:32 pm-5:40 am

1 stop17h 08m

$690

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

수 2/19

6:15 pm-10:55 am

Nonstop9h 40m

Seattle/Tacoma Intl

토 2/22

12:45 pm-5:50 pm

Nonstop12h 05m

$697

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

수 2/5

4:10 pm-9:00 am

Nonstop9h 50m

Seattle/Tacoma Intl

수 2/19

11:00 am-3:55 pm

Nonstop11h 55m

$700

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

수 2/5

10:35 pm-8:00 am

2 stops26h 25m

Seattle/Tacoma Intl

목 3/6

10:00 am-9:30 pm

2 stops42h 30m

$710

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

목 5/1

5:45 pm-2:13 pm

1 stop12h 28m

Seattle/Tacoma Intl

월 5/12

10:00 am-9:40 pm

2 stops19h 40m

$713

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

수 2/12

6:50 pm-10:59 am

2 stops33h 09m

Seattle/Tacoma Intl

화 2/25

12:43 am-4:45 pm

1 stop23h 02m

$726

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

목 2/20

7:45 am-1:20 pm

1 stop22h 35m

Seattle/Tacoma Intl

월 2/24

7:32 pm-11:20 am

2 stops22h 48m

$797

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

화 4/22

12:35 pm-7:30 pm

1 stop22h 55m

Seattle/Tacoma Intl

월 5/5

1:10 am-7:35 pm

1 stop26h 25m

$879

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 28 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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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.

Travel insights for flights from Seoul to Seattle

Get recent, data-driven insights about flights from Seoul to Seattle including ideal travel times, pricing trends, and more.

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 January 17, 2025.

To ensure you get the cheapest price possible for a flight from Seoul to Seattle, you should look to book at least 85 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, January is the cheapest month in which you can book a flight from Seoul to Seattle (average of $238). Flying from Seoul to Seattle in July is currently the most expensive (average of $411). 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 1월 21, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 15% on flights from Seoul to Seattle by exploring options for tickets in the morning.

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 1월 21, 2025.

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

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 1월 21, 2025.
To help decide which airline to fly from Seoul to Seattle, see what other customers have to say about Korean Air, China Airlines and ANA. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

EVA Air
8.4
Very good
1,255 reviews
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
852 reviews
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,449 reviews
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

China Airlines
8.2
Very good
737 reviews
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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 popular is this Seoul to Seattle flight route?

    The Seoul to Seattle/Tacoma Intl flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    According to our current data, Delta ($685), Air Canada ($688), and United Airlines ($690) offers the cheapest pricing from Seoul to Seattle. You may be able to fly from Seoul to Seattle for 31% 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 Hainan Airlines, which is currently one of the cheapest options available, starting at $406. WestJet flights start at $476 while deals on Air Canada start at $477 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 (48%), Korean Air (48%) and Etihad Airways (34%).

  • What are the cheapest flights from Seoul to Seattle?

    Looking for the cheapest flight from Seoul to Seattle? While on average our users pay $1,440, our data indicates the cheapest price to be $585. The most popular route (Incheon Intl - Seattle/Tacoma Intl), is priced around $641.

  • 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, January is the cheapest month in which you can book a flight from Seoul to Seattle (average of $238). Flying from Seoul to Seattle in July is currently the most expensive (average of $411). 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 Seoul?

Book flights to Seoul if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

Browse thousands of different options on Cheapflights for your next trip

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

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 1월 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$538Average$718FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$615Average$878FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$666Average$1,061FlexibilityNo cancel feeOn-time76%
DeltaCheapest$687Average$1,147FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$691Average$1,182FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$727Average$834FlexibilityNo cancel feeOn-time67%
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