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$507+ Cheap flights from Seattle (SEA) to Seoul (SEL)

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.
SEA — SEL
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Find cheap flights from Seattle to Seoul 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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Seoul are usually found in February or January, booked 74 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Seoul (SEL). 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 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$958
(Kiwi.com)

One-way from

$507
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,105

Good round-trip deal

$797 or less

Good one-way deal

$492 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Seoul (SEL) flights.
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From Seattle/Tacoma Intl to Seoul (SEL)
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One-way flight from Seattle/Tacoma Intl to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($297 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Seoul (SEL).
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Seoul (SEL).
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Find flight deals from Seattle to Seoul

Cheapest flights from Seattle to Seoul
Explore the most affordable flight options available from Seattle to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This oojo deal was found by Cheapflights users on 4/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2012:10 amSEA - ICN
1 stop18h 10mChina Airlines
Sun 11/3012:25 pmICN - SEA
1 stop22h 50mChina Airlines
Deal found 4/16$890
This WestJet deal was found by Cheapflights users on 4/16. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/291:15 pmSEA - ICN
2 stops37h 30mWestJet
Sun 9/149:40 pmICN - SEA
2 stops32h 29mWestJet
Deal found 4/16$962
This Gotogate deal was found by Cheapflights users on 4/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/97:35 pmSEA - ICN
1 stop31h 10mMultiple Airlines
Sat 9/2012:35 pmICN - SEA
1 stop22h 45mMultiple Airlines
Deal found 4/17$964
This oojo deal was found by Cheapflights users on 4/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/281:30 amSEA - ICN
1 stop17h 30mEVA Air
Mon 10/1312:00 pmICN - SEA
1 stop23h 30mEVA Air
Deal found 4/17$976
This CheapOair deal was found by Cheapflights users on 4/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2411:00 amSEA - ICN
2 stops42h 30mHainan Airlines
Wed 5/710:35 pmICN - SEA
2 stops26h 25mHainan Airlines
Deal found 4/16$981
This FlightHub deal was found by Cheapflights users on 4/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 pmSEA - ICN
1 stop30h 20mTurkish Airlines
Wed 11/2612:10 amICN - SEA
1 stop33h 55mTurkish Airlines
Deal found 4/16$1,024
This Gotogate deal was found by Cheapflights users on 4/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2511:35 pmSEA - ICN
1 stop27h 45mPhilippine Airlines
Wed 5/78:00 amICN - SEA
1 stop27h 15mPhilippine Airlines
Deal found 4/17$1,040
This oojo deal was found by Cheapflights users on 4/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/281:30 amSEA - GMP
1 stop25h 45mEVA Air
Tue 5/207:15 pmGMP - SEA
2 stops32h 20mEVA Air
Deal found 4/16$1,042
This oojo deal was found by Cheapflights users on 4/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/77:59 pmSEA - ICN
2 stops26h 06mCathay Pacific
Sun 5/118:05 pmICN - SEA
2 stops29h 45mCathay Pacific
Deal found 4/16$1,050
This Justfly.com deal was found by Cheapflights users on 4/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/64:30 pmSEA - GMP
1 stop34h 05mANA
Sat 9/2012:40 pmGMP - SEA
2 stops21h 56mANA
Deal found 4/16$1,171
This ANA deal was found by Cheapflights users on 4/16. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:45 amSEA - GMP
2 stops23h 35mMultiple Airlines
Wed 10/112:40 pmGMP - SEA
2 stops21h 56mMultiple Airlines
Deal found 4/16$1,253
This oojo deal was found by Cheapflights users on 4/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:37 amSEA - GMP
2 stops21h 13mJapan Airlines
Fri 9/127:55 amGMP - SEA
2 stops23h 01mJapan Airlines
Deal found 4/16$1,328

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Seoul 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 17, 2025.
Use the filters below to find and compare flights from Seattle to Seoul that are best for you.

Fly from

Seattle

Fly to

Seoul

Route

Depart

Return

Price

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 8/29

1:15 pm-6:45 pm

2 stops37h 30m

Incheon Intl

Sun 9/14

9:40 pm-2:09 pm

2 stops32h 29m

$962

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 8/9

7:35 pm-6:45 pm

1 stop31h 10m

Incheon Intl

Sat 9/20

12:35 pm-7:20 pm

1 stop22h 45m

$964

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 8/24

1:40 am-7:35 pm

1 stop25h 55m

Incheon Intl

Mon 9/22

8:35 pm-8:09 am

2 stops27h 34m

$971

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 9/28

1:30 am-11:00 am

1 stop17h 30m

Incheon Intl

Mon 10/13

12:00 pm-7:30 pm

1 stop23h 30m

$976

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 8/21

12:30 pm-8:40 am

1 stop28h 10m

Incheon Intl

Fri 8/29

11:20 pm-5:15 pm

1 stop33h 55m

$1,038

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 4/28

1:30 am-7:15 pm

1 stop25h 45m

Seoul Gimpo Intl

Tue 5/20

7:15 pm-11:35 am

2 stops32h 20m

$1,042

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 5/7

7:59 pm-2:05 pm

2 stops26h 06m

Incheon Intl

Sun 5/11

8:05 pm-9:50 am

2 stops29h 45m

$1,050

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 10/4

7:15 pm-4:05 pm

1 stop28h 50m

Incheon Intl

Fri 10/31

5:50 pm-9:50 am

1 stop32h 00m

$1,129

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sat 9/6

4:30 pm-6:35 pm

1 stop34h 05m

Seoul Gimpo Intl

Sat 9/20

12:40 pm-6:36 pm

2 stops21h 56m

$1,171

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sun 8/31

2:10 am-6:10 pm

1 stop24h 00m

Seoul Gimpo Intl

Mon 9/15

7:20 pm-10:25 am

1 stop31h 05m

$1,294

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 27 results
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Compare providers for flights from Seattle to Seoul

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 Seattle to Seoul in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Seattle-Seoul flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Seoul flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Seoul flights, Cheapflights users trust AranGrant the most. AranGrant 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 Seattle-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Seattle to Seoul flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Seoul trip
Airlines
Korean Air

Korean Air offers lie-flat seats in business class with a 75” pitch and 21” width.


Economy passengers enjoy a 33”-34” seat pitch, more spacious than many competitors.

Read more about Korean Airby Yulia Denisyuk
Asiana Airlines

Asiana’s A380 business suite features a fully flat 81” bed and 32” entertainment screen.


Economy class on A350 offers extra legroom with 36” pitch in Economy Smartium seats.

Read more about Asiana Airlinesby Marisa Garcia
Airports
SEA

Plan to arrive at least two hours before your flight; security lines can exceed 30 minutes during peak times.

Read more about SEAby Brandon Schultz
ICN

The AREX express train is a quick option between Incheon and Seoul Station, taking 40-50 minutes.

Read more about ICNby Gabriel Leigh
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on Korean Air

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more
Marisa Garcia

Marisa Garcia

Expert on Asiana Airlines

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Seattle to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Seattle 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 Seattle to Seoul

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Seoul. Price data was last updated on April 11, 2025.

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Seattle to Seoul (average of $1,001). Flying from Seattle to Seoul in June is currently the most expensive (average of $1,650). 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 SEA to SEL?

Find hourly flight availability from Seattle to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

It’s optimal to fly from Seattle to Seoul in the morning. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Seattle to Seoul?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Seoul. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Seoul flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Seoul

Explore weekly flight availability from Seattle to Seoul. 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 17, 2025.

The most flights from SEA to SEL are scheduled on a Monday (8 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Seoul by month

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

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

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

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated April 17, 2025.
Read through reviews of airlines operating flights from Seattle to Seoul, such as EVA Air, Korean Air and Japan Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,177 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,177 reviews
EVA Air
8.4
Very good
1,177 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very good
1,064 reviews
EVA Air
8.4
Very good
1,177 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,177 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
ANA
8.3
Very good
844 reviews
EVA Air
8.4
Very good
1,177 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
China Airlines
8.2
Very good
729 reviews
EVA Air
8.4
Very good
1,177 reviews

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Seoul. 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 from for flights from Seattle to Seoul?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Seoul. You should not have trouble finding flights to Seoul from Seattle/Tacoma Intl; the airport handles an average of 7 outbound flights to Seoul per day. You should also have plenty of airline options to choose from since 9 airlines have flights from the Seattle airport to Seoul. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • How popular is this Seattle to Seoul flight route?

    Within the past month, 200 users have taken a look at flights from Seattle/Tacoma Intl to Seoul.

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

    China Airlines, at $971, was found to be the cheapest airline from Seattle to Seoul.Alternate airlines to your destination round-trip include Hainan Airlines and EVA Air. China Airlines is priced at 22% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with China Airlines, which is currently one of the cheapest options available, starting at $556. WestJet flights start at $584 while deals on EVA Air start at $584 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Seattle to Seoul consider choosing Korean Air (86%), Delta (85%) or Etihad Airways (77%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Seoul?

    Looking for the cheapest flight from Seattle to Seoul? While on average our users pay $1,595, our data indicates the cheapest price to be $419. The most popular route (Seattle/Tacoma Intl - Incheon Intl), is priced around $955.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Seoul 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 Seattle to Seoul?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Seoul (average of $1,001). Flying from Seattle to Seoul in June is currently the most expensive (average of $1,650). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Seattle to Seoul

Discover the top 9 airlines that operate flights from Seattle to Seoul. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$600Average$1,134FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$657Average$1,379FlexibilityNo cancel feeOn-time69%
DeltaCheapest$813Average$1,388FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$824Average$946FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$862Average$969FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$922Average$1,251FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$966Average$1,333FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$970Average$1,249FlexibilityNo cancel feeOn-time77%
EVA AirCheapest$986Average$1,089FlexibilityNo cancel feeOn-time74%

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