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$406+ 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
jun. 28 — jul. 51
sáb. 6/28
sáb. 7/5
1 adult, Economy
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Cheapflights Tip: The best prices from Seoul to Seattle/Tacoma Intl are usually found in May or June, booked 8 days in advance, depart on a Tuesday or Wednesday 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 junio 23, 2025.

Round-trip from

$532
(Trip.com)

One-way from

$406
(Gotogate)

Popular in

October

Cheapest in

May

Average price

$666

Good round-trip deal

$639 or less

Good one-way deal

$621 or less
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. 12% potential increase in price ($121 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 23, 2025.

This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/126:50 pmICN - SEA
1 stop31h 26mAir Canada
mié. 11/268:20 pmSEA - ICN
1 stop27h 45mAir Canada
Deal found 6/23$532
This WhyPayMore 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/98:35 pmICN - SEA
Nonstop10h 00mHawaiian Airlines
dom. 10/192:55 pmSEA - ICN
Nonstop11h 40mHawaiian Airlines
Deal found 6/21$549
This WhyPayMore deal was found by Cheapflights users on 6/22. 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.
mié. 9/246:20 pmICN - SEA
Nonstop10h 10mAsiana Airlines
vie. 10/32:15 pmSEA - ICN
Nonstop11h 40mAsiana Airlines
Deal found 6/22$566
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/108:35 pmICN - SEA
Nonstop10h 20mAlaska Airlines
vie. 11/281:40 pmSEA - ICN
Nonstop11h 55mAlaska Airlines
Deal found 6/23$581
This WhyPayMore 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/168:05 pmICN - SEA
Nonstop10h 15mKorean Air
lun. 1/511:00 amSEA - ICN
Nonstop11h 55mKorean Air
Deal found 6/21$582
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.
mar. 9/239:10 amICN - SEA
2 stops29h 06mMultiple Airlines
lun. 10/202:55 pmSEA - ICN
1 stop33h 10mMultiple Airlines
Deal found 6/23$589
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/118:05 pmICN - SEA
Nonstop10h 15mDelta
mié. 11/2611:15 amSEA - ICN
Nonstop12h 15mDelta
Deal found 6/23$595
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/911:30 amICN - SEA
1 stop17h 58mUnited Airlines
sáb. 9/207:00 amSEA - ICN
1 stop16h 00mUnited Airlines
Deal found 6/20$607
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/257:50 pmGMP - SEA
1 stop34h 30mANA
jue. 11/2710:00 amSEA - GMP
2 stops19h 30mANA
Deal found 6/21$821
This Onlinetour 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 Onlinetour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/41:50 pmGMP - SEA
1 stop22h 00mEVA Air
jue. 7/102:10 amSEA - GMP
1 stop18h 40mEVA Air
Deal found 6/23$977

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 junio 23, 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

mié. 11/12

6:50 pm-9:16 am

1 stop31h 26m

Seattle/Tacoma Intl

mié. 11/26

8:20 pm-5:05 pm

1 stop27h 45m

$532

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

jue. 10/9

8:35 pm-2:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

dom. 10/19

2:55 pm-6:35 pm

Nonstop11h 40m

$549

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

mié. 9/10

6:20 pm-12:30 pm

Nonstop10h 10m

Seattle/Tacoma Intl

mié. 9/17

2:15 pm-5:55 pm

Nonstop11h 40m

$563

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

lun. 11/10

8:35 pm-1:55 pm

Nonstop10h 20m

Seattle/Tacoma Intl

jue. 11/27

1:40 pm-6:35 pm

Nonstop11h 55m

$581

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

mar. 12/16

8:05 pm-1:20 pm

Nonstop10h 15m

Seattle/Tacoma Intl

lun. 1/5

11:00 am-3:55 pm

Nonstop11h 55m

$582

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

mar. 9/23

9:10 am-10:16 pm

2 stops29h 06m

Seattle/Tacoma Intl

lun. 10/20

2:55 pm-4:05 pm

1 stop33h 10m

$589

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

mar. 11/11

8:05 pm-1:20 pm

Nonstop10h 15m

Seattle/Tacoma Intl

jue. 11/27

11:15 am-4:30 pm

Nonstop12h 15m

$595

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

jue. 11/13

6:00 pm-9:13 pm

2 stops20h 13m

Seattle/Tacoma Intl

mar. 11/25

7:00 am-4:15 pm

1 stop16h 15m

$606

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

mar. 11/25

7:50 pm-1:20 pm

1 stop34h 30m

Seattle/Tacoma Intl

jue. 11/27

10:00 am-10:30 pm

2 stops19h 30m

$821

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

vie. 7/4

1:50 pm-7:50 pm

1 stop22h 00m

Seattle/Tacoma Intl

jue. 7/10

2:10 am-12:50 pm

1 stop18h 40m

$977

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 24 results
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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 June 20, 2025.

To ensure you get the cheapest price possible for a flight from Seoul to Seattle, you should look to book at least 8 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, 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 $391). 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 junio 23, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 18% on flights from Seoul to Seattle by exploring options for tickets at noon.

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 junio 23, 2025.

The most flights from SEL to SEA are scheduled on a Friday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 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 junio 23, 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
1,207 reviews

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,207 reviews
EVA Air
8.4
Very good
1,207 reviews

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,092 reviews
EVA Air
8.4
Very good
1,207 reviews

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,502 reviews
EVA Air
8.4
Very good
1,207 reviews

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
745 reviews
EVA Air
8.4
Very good
1,207 reviews

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.3
Very good
887 reviews
EVA Air
8.4
Very good
1,207 reviews

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from Seoul to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Seoul?

    If you book a flight to Seattle from Seoul, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 8 flights from Seoul to Seattle/Tacoma Intl per day from 5 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 ($532), Hawaiian Airlines ($549), and Asiana Airlines ($563) offers the cheapest pricing from Seoul to Seattle. You may be able to fly from Seoul to Seattle for 35% 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 $454 while deals on China Airlines start at $496 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 (63%), Korean Air (63%) and Thai Airways (61%).

  • What are the cheapest flights from Seoul to Seattle?

    Looking for the cheapest flight from Seoul to Seattle? While on average our users pay $1,479, our data indicates the cheapest price to be $452. The most popular route (Incheon Intl - Seattle/Tacoma Intl), is priced around $548.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seoul to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, 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 $391). 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
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Puyallup
Cle Elum
Centralia
Kent
Kirkland
Aberdeen
Renton
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
Incheon Intl to Portland flights
Busan to Seattle flights
Busan to Portland flights
Gimpo Intl to Portland flights
Incheon Intl to Spokane flights

Top 5 airlines flying from Seoul to Seattle

Discover the top 5 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 junio 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$474Average$752FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$515Average$889FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$516Average$658FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$543Average$813FlexibilityNo cancel feeOn-time76%
DeltaCheapest$643Average$996FlexibilityNo cancel feeOn-timeN/A

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