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$380+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
Aug 16 — Aug 231
Sat 8/16
Sat 8/23
1 adult, Economy
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Cheapflights Tip: The best prices from Seoul to Seattle/Tacoma Intl are usually found in June or May, booked 8 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

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 August 11, 2025.

Round-trip from

$512
(Trip.com)

One-way from

$380
(Trip.com)

Popular in

October

Cheapest in

June

Average price

$884

Good round-trip deal

$617 or less

Good one-way deal

$550 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. 4% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 11, 2025.

This Trip.com deal was found by Cheapflights users on 8/10. 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.
Sat 9/208:35 pmICN - SEA
Nonstop10h 10mHawaiian Airlines
Sat 9/272:50 pmSEA - ICN
Nonstop11h 45mHawaiian Airlines
Deal found 8/10$512
This Trip.com deal was found by Cheapflights users on 8/8. 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.
Sat 9/138:35 pmICN - SEA
Nonstop10h 10mHawaiian Airlines
Fri 9/262:50 pmSEA - ICN
Nonstop11h 45mHawaiian Airlines
Deal found 8/8$513
This Hanatour deal was found by Cheapflights users on 8/8. 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 Hanatour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/208:35 pmICN - SEA
Nonstop10h 00mHawaiian Airlines
Fri 10/312:45 pmSEA - ICN
Nonstop11h 50mHawaiian Airlines
Deal found 8/8$516
This Hanatour deal was found by Cheapflights users on 8/8. 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 Hanatour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:35 pmICN - SEA
Nonstop10h 20mHawaiian Airlines
Sat 11/158:00 amSEA - ICN
1 stop18h 25mHawaiian Airlines
Deal found 8/8$518
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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.
Fri 11/149:25 pmICN - SEA
2 stops29h 36mAlaska Airlines
Sat 11/221:40 pmSEA - ICN
Nonstop11h 55mAlaska Airlines
Deal found 8/8$522
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:35 pmICN - SEA
Nonstop10h 10mAlaska Airlines
Fri 9/265:05 pmSEA - ICN
2 stops33h 55mAlaska Airlines
Deal found 8/10$523
This WhyPayMore deal was found by Cheapflights users on 8/10. 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 10/98:35 pmICN - SEA
Nonstop10h 00mHawaiian Airlines
Sun 10/192:55 pmSEA - ICN
Nonstop11h 40mHawaiian Airlines
Deal found 8/10$533
This Gotogate deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:45 amGMP - SEA
2 stops28h 31mANA
Fri 5/14:30 pmSEA - GMP
1 stop26h 35mANA
Deal found 8/9$832
This Gotogate deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:25 pmGMP - SEA
1 stop17h 55mANA
Tue 12/210:05 amSEA - GMP
2 stops19h 25mANA
Deal found 8/8$835
This Gotogate deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:40 amGMP - SEA
2 stops26h 56mANA
Thu 9/184:30 pmSEA - GMP
1 stop34h 05mANA
Deal found 8/8$836
This Gotogate deal was found by Cheapflights users on 8/9. 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 11/127:50 pmGMP - SEA
1 stop34h 30mANA
Tue 11/2510:05 amSEA - GMP
2 stops19h 25mANA
Deal found 8/9$837
This Gotogate deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:40 amGMP - SEA
2 stops26h 56mANA
Thu 9/254:30 pmSEA - GMP
1 stop34h 05mANA
Deal found 8/10$838

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 August 11, 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

Sat 9/20

8:35 pm-2:45 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Sat 9/27

2:50 pm-6:35 pm

Nonstop11h 45m

$512

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Sat 9/13

8:35 pm-2:45 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Fri 9/26

2:50 pm-6:35 pm

Nonstop11h 45m

$513

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 10/20

8:35 pm-2:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Fri 10/31

2:45 pm-6:35 pm

Nonstop11h 50m

$516

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 11/7

8:35 pm-1:55 pm

Nonstop10h 20m

Seattle/Tacoma Intl

Sat 11/15

8:00 am-7:25 pm

1 stop18h 25m

$518

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 9/19

8:35 pm-2:45 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Fri 9/26

5:05 pm-7:00 pm

2 stops33h 55m

$523

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 10/9

8:35 pm-2:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Sun 10/19

2:55 pm-6:35 pm

Nonstop11h 40m

$533

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 9/18

8:35 pm-2:45 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Fri 9/26

8:45 pm-7:00 pm

1 stop30h 15m

$535

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Mon 9/15

7:40 am-6:36 pm

2 stops26h 56m

Seattle/Tacoma Intl

Thu 9/18

4:30 pm-6:35 pm

1 stop34h 05m

$836

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 9/9

12:40 pm-2:25 pm

1 stop17h 45m

Seattle/Tacoma Intl

Wed 11/12

10:05 am-10:30 pm

2 stops19h 25m

$837

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Tue 9/23

7:40 am-6:36 pm

2 stops26h 56m

Seattle/Tacoma Intl

Thu 9/25

4:30 pm-6:35 pm

1 stop34h 05m

$838

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/7

Showing 1-10 of 38 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 August 8, 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 June is currently the most expensive (average of $388). 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 August 11, 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 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 August 11, 2025.

The most flights from SEL to SEA are scheduled on a Tuesday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Seoul to Seattle?

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 August 11, 2025.
Peruse reviews from past customers who have flown with EVA Air, ANA, and Korean Air from Seoul to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,228 reviews

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

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
1,228 reviews
EVA Air
8.4
Very good
1,228 reviews

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

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
8.4
Very good
929 reviews
EVA Air
8.4
Very good
1,228 reviews

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

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
1,126 reviews
EVA Air
8.4
Very good
1,228 reviews

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

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
1,545 reviews
EVA Air
8.4
Very good
1,228 reviews

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

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
Asiana Airlines
8.2
Very good
473 reviews
EVA Air
8.4
Very good
1,228 reviews

Crew

8.6

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

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 7 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, Hawaiian Airlines ($512), and ANA ($836) offers the cheapest pricing from Seoul to Seattle. You may be able to fly from Seoul to Seattle for 32% less than the average price by searching for these airlines.

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

    The top 3 most reliable airlines when flying from Seoul to Seattle are Delta (52%), Korean Air (52%) and Thai 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 $1,242, our data indicates the cheapest price to be $398. The most popular route (Incheon Intl - Seattle/Tacoma Intl), is priced around $513.

  • 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 June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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
Incheon Intl to Spokane flights
Busan to Portland 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 August 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$472Average$727FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$515Average$812FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$516Average$646FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$536Average$764FlexibilityNo cancel feeOn-time76%
DeltaCheapest$638Average$770FlexibilityNo cancel feeOn-timeN/A

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