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$352+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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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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Cheapflights Tip: The best prices from Seoul to Seattle/Tacoma Intl are usually found in March or February, booked 19 days in advance, depart on a Tuesday or Thursday and return on a Monday

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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$471
(WhyPayMore)

One-way from

$352
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$670

Good round-trip deal

$865 or less

Good one-way deal

$578 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. 23% potential increase in price ($283 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This WhyPayMore deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/125:45 pmICN - SEA
1 stop12h 28mAir Canada
Thu 5/297:15 pmSEA - ICN
1 stop28h 50mAir Canada
Deal found 3/27$471
This WhyPayMore deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/227:20 pmICN - SEA
Nonstop10h 15mKorean Air
Fri 7/251:20 pmSEA - ICN
Nonstop11h 20mKorean Air
Deal found 3/27$487
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Wed 4/1611:30 amICN - SEA
2 stops18h 29mUnited Airlines
Wed 4/238:50 amSEA - ICN
2 stops27h 30mUnited Airlines
Deal found 3/27$516
This Delta deal was found by Cheapflights users on 3/26. 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.
Thu 4/34:00 pmICN - SEA
1 stop16h 05mDelta
Sun 4/1312:40 pmSEA - ICN
Nonstop11h 50mDelta
Deal found 3/26$617
This Air Canada deal was found by Cheapflights users on 3/27. 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 10/2310:40 amICN - SEA
2 stops19h 36mMultiple Airlines
Sat 10/255:45 amSEA - ICN
1 stop18h 20mMultiple Airlines
Deal found 3/27$623
This WhyPayMore deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/146:20 pmICN - SEA
Nonstop10h 10mAsiana Airlines
Wed 5/72:15 pmSEA - ICN
Nonstop11h 40mAsiana Airlines
Deal found 3/27$637
This Justfly.com deal was found by Cheapflights users on 3/27. 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.
Tue 7/87:40 amGMP - SEA
1 stop22h 45mANA
Mon 8/41:45 pmSEA - GMP
2 stops29h 20mANA
Deal found 3/27$753
This Gotogate deal was found by Cheapflights users on 3/27. 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.
Wed 5/710:35 pmICN - SEA
2 stops26h 25mHainan Airlines
Thu 5/2211:00 amSEA - ICN
2 stops42h 30mHainan Airlines
Deal found 3/27$775
This Justfly.com deal was found by Cheapflights users on 3/27. 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.
Wed 4/167:55 amGMP - SEA
2 stops24h 58mJapan Airlines
Thu 6/268:00 amSEA - GMP
2 stops21h 50mJapan Airlines
Deal found 3/27$1,084
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/114:00 pmGMP - SEA
2 stops33h 00mMultiple Airlines
Thu 4/1712:30 pmSEA - GMP
3 stops32h 35mMultiple Airlines
Deal found 3/27$1,362
This EVA Air deal was found by Cheapflights users on 3/26. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/81:50 pmGMP - SEA
1 stop22h 00mEVA Air
Sun 9/141:30 amSEA - GMP
1 stop24h 40mEVA Air
Deal found 3/26$1,380
This oojo deal was found by Cheapflights users on 3/27. 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 4/168:35 amGMP - SEA
2 stops26h 02mAir China
Thu 6/265:14 pmSEA - GMP
2 stops28h 56mAir China
Deal found 3/27$2,420

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 March 28, 2025.
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 5/12

5:45 pm-2:13 pm

1 stop12h 28m

Seattle/Tacoma Intl

Thu 5/29

7:15 pm-4:05 pm

1 stop28h 50m

$471

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 5/22

7:20 pm-1:35 pm

Nonstop10h 15m

Seattle/Tacoma Intl

Fri 7/25

1:20 pm-4:40 pm

Nonstop11h 20m

$487

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 4/16

11:30 am-6:07 pm

2 stops22h 37m

Seattle/Tacoma Intl

Sat 4/19

5:05 pm-3:00 pm

1 stop29h 55m

$516

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 9/9

10:40 am-2:16 pm

2 stops19h 36m

Seattle/Tacoma Intl

Tue 9/23

10:00 am-4:05 pm

1 stop14h 05m

$592

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 5/13

7:20 pm-1:35 pm

Nonstop10h 15m

Seattle/Tacoma Intl

Tue 7/1

6:15 am-5:20 pm

1 stop19h 05m

$615

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 4/14

6:20 pm-12:30 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Wed 5/7

2:15 pm-5:55 pm

Nonstop11h 40m

$637

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Thu 9/4

7:40 am-2:25 pm

1 stop22h 45m

Seattle/Tacoma Intl

Tue 9/16

4:30 pm-6:35 pm

1 stop34h 05m

$784

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Sat 9/20

1:50 pm-7:30 pm

1 stop21h 40m

Seattle/Tacoma Intl

Wed 10/15

1:30 am-12:50 pm

1 stop19h 20m

$894

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 6/2

2:25 pm-10:13 pm

2 stops23h 48m

Seattle/Tacoma Intl

Mon 6/23

10:00 am-9:25 pm

2 stops19h 25m

$997

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 9/16

7:55 am-10:25 am

1 stop18h 30m

Seattle/Tacoma Intl

Mon 10/20

1:30 pm-9:50 pm

1 stop16h 20m

$1,030

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 19 results
1
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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 March.
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*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 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 March 21, 2025.

To ensure you get the cheapest price possible for a flight from Seoul to Seattle, you should look to book at least 19 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 March 28, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 28% on flights from Seoul to Seattle by exploring options for tickets in the morning.

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 March 28, 2025.
To help decide which airline to fly from Seoul to Seattle, see what other customers have to say about EVA Air, Korean Air and Japan Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

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
1,169 reviews
EVA Air
8.4
Very good
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

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
1,050 reviews
EVA Air
8.4
Very good
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

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
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

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
829 reviews
EVA Air
8.4
Very good
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

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.
Asiana Airlines
8.2
Very good
440 reviews
EVA Air
8.4
Very good
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

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 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 5 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, Air Canada ($471), Korean Air ($487), and United Airlines ($516) offers the cheapest pricing from Seoul to Seattle. You may be able to fly from Seoul to Seattle for 48% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Hainan Airlines, which is currently one of the cheapest options available, starting at $405. WestJet flights start at $409 while deals on Air Canada start at $479 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 (53%), Korean Air (53%) and Etihad Airways (30%).

  • What are the cheapest flights from Seoul to Seattle?

    Looking for the cheapest flight from Seoul to Seattle? While on average our users pay $2,101, our data indicates the cheapest price to be $479. The most popular route (Incheon Intl - Seattle/Tacoma Intl), is priced around $487.

  • 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
Tacoma
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

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
Incheon Intl to Portland flights
Gimpo Intl to Portland flights
Busan to Seattle 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$538Average$718FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$595Average$779FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$615Average$887FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$643Average$998FlexibilityNo cancel feeOn-time76%
DeltaCheapest$668Average$1,140FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$684Average$1,188FlexibilityNo cancel feeOn-time81%
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