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$333+ Cheap flights from South Korea 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SEA
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap flight deals from South Korea to Seattle

Keep the following information in mind while searching for South Korea to Seattle flight deals. Data was last updated julio 30, 2025.

Round-trip from

$504
(Alaska Airlines)

One-way from

$333
(Kiwi.com)

Popular in

August

Cheapest in

June

Average price

$844

Good round-trip deal

$623 or less

Good one-way deal

$621 or less
From South Korea to Seattle/Tacoma Intl
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One-way flight from South Korea to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 8% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from South Korea to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from South Korea to Seattle/Tacoma Intl.
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Find flight deals from South Korea to Seattle

Cheapest flights from South Korea to Seattle
Explore the most affordable flight options available from South Korea to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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.
sáb. 9/138:35 pmICN - SEA
Nonstop10h 10mHawaiian Airlines
jue. 9/182:50 pmSEA - ICN
Nonstop11h 45mHawaiian Airlines
Deal found 7/30$504
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
jue. 9/188:35 pmICN - SEA
Nonstop10h 10mAlaska Airlines
sáb. 9/272:50 pmSEA - ICN
Nonstop11h 45mAlaska Airlines
Deal found 7/29$505
This WhyPayMore deal was found by Cheapflights users on 7/29. 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.
lun. 10/66:20 pmICN - SEA
Nonstop10h 10mAsiana Airlines
sáb. 11/1512:10 amSEA - ICN
Nonstop12h 10mAsiana Airlines
Deal found 7/29$518
This United Airlines deal was found by Cheapflights users on 7/29. 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.
vie. 10/104:50 pmICN - SEA
2 stops35h 06mUnited Airlines
dom. 10/265:20 pmSEA - ICN
1 stop29h 55mUnited Airlines
Deal found 7/29$521
This oojo deal was found by Cheapflights users on 7/29. 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.
dom. 12/2110:25 amPUS - SEA
1 stop20h 30mMultiple Airlines
mar. 12/3012:10 amSEA - PUS
1 stop15h 00mMultiple Airlines
Deal found 7/29$640
This WhyPayMore deal was found by Cheapflights users on 7/29. 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.
lun. 9/89:15 pmPUS - SEA
1 stop29h 25mKorean Air
vie. 9/1212:50 pmSEA - PUS
1 stop14h 45mKorean Air
Deal found 7/29$675
This oojo deal was found by Cheapflights users on 7/30. 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.
dom. 12/214:30 pmPUS - SEA
2 stops38h 25mAsiana Airlines
lun. 12/2912:10 amSEA - PUS
2 stops22h 20mAsiana Airlines
Deal found 7/30$721
This Delta deal was found by Cheapflights users on 7/30. 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.
dom. 12/2112:00 pmPUS - SEA
1 stop18h 20mDelta
mié. 12/3111:00 amSEA - PUS
1 stop30h 50mDelta
Deal found 7/30$726
This Gotogate deal was found by Cheapflights users on 7/27. 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.
mar. 9/97:40 amGMP - SEA
2 stops26h 56mANA
jue. 5/144:30 pmSEA - GMP
1 stop26h 35mANA
Deal found 7/27$816
This Gotogate deal was found by Cheapflights users on 7/29. 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.
lun. 11/1011:50 amPUS - SEA
1 stop23h 20mChina Airlines
dom. 11/3012:10 amSEA - PUS
1 stop25h 40mChina Airlines
Deal found 7/29$824
This EVA Air deal was found by Cheapflights users on 7/30. 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.
sáb. 9/131:50 pmGMP - SEA
1 stop21h 00mEVA Air
jue. 9/251:30 amSEA - GMP
1 stop19h 20mEVA Air
Deal found 7/30$849
This Ovago deal was found by Cheapflights users on 7/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/206:55 pmPUS - SEA
1 stop15h 45mEVA Air
lun. 12/2912:10 amSEA - PUS
1 stop24h 30mEVA Air
Deal found 7/29$1,055

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Korea 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 julio 30, 2025.
Use the filters below to find and compare flights from South Korea to Seattle that are best for you.

Fly from

South Korea

Fly to

Seattle

Route

Depart

Return

Price

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

sáb. 9/13

8:35 pm-2:45 pm

Nonstop10h 10m

Seattle/Tacoma Intl

jue. 9/18

2:50 pm-6:35 pm

Nonstop11h 45m

$504

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

jue. 9/18

8:35 pm-2:45 pm

Nonstop10h 10m

Seattle/Tacoma Intl

sáb. 9/27

2:50 pm-6:35 pm

Nonstop11h 45m

$505

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

lun. 10/6

6:20 pm-12:30 pm

Nonstop10h 10m

Seattle/Tacoma Intl

sáb. 11/15

12:10 am-5:20 am

Nonstop12h 10m

$518

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

vie. 10/10

4:50 pm-11:56 am

2 stops35h 06m

Seattle/Tacoma Intl

dom. 10/26

5:20 pm-3:15 pm

1 stop29h 55m

$521

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

dom. 12/21

4:10 pm-1:55 pm

1 stop14h 45m

Seattle/Tacoma Intl

lun. 12/29

12:10 am-8:10 am

1 stop15h 00m

$640

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

lun. 9/8

9:15 pm-10:40 am

1 stop29h 25m

Seattle/Tacoma Intl

vie. 9/12

12:50 pm-7:35 pm

1 stop14h 45m

$675

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

dom. 12/21

4:30 pm-1:55 pm

2 stops38h 25m

Seattle/Tacoma Intl

lun. 12/29

12:10 am-3:30 pm

2 stops22h 20m

$721

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

dom. 12/21

10:25 am-1:20 pm

1 stop19h 55m

Seattle/Tacoma Intl

mar. 12/30

9:20 pm-8:45 pm

2 stops30h 25m

$726

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

mar. 9/9

7:40 am-6:36 pm

2 stops26h 56m

Seattle/Tacoma Intl

jue. 5/14

4:30 pm-11:05 am

1 stop26h 35m

$816

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

lun. 11/10

11:50 am-6:10 pm

1 stop23h 20m

Seattle/Tacoma Intl

dom. 11/30

12:10 am-6:50 pm

1 stop25h 40m

$824

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 21 results
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Best time to book a flight from South Korea to Seattle

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

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

Currently, January is the cheapest month in which you can book a flight from South Korea to Seattle (average of $238). Flying from South Korea to Seattle in June is currently the most expensive (average of $389). 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 KR to SEA?

Find hourly flight availability from South Korea 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 julio 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from South Korea to Seattle as you normally would.

Weekly flight availability from South Korea to Seattle

Explore weekly flight availability from South Korea 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 julio 30, 2025.

The most flights from KR0 to SEA are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

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 julio 30, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air, and ANA from South Korea to Seattle. 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
1,222 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

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
1,222 reviews
EVA Air
8.4
Very good
1,222 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

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
1,121 reviews
EVA Air
8.4
Very good
1,222 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

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
922 reviews
EVA Air
8.4
Very good
1,222 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

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
1,536 reviews
EVA Air
8.4
Very good
1,222 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

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
754 reviews
EVA Air
8.4
Very good
1,222 reviews

Entertainment

8.0

Food

8.1

Overall

8.4

Crew

8.6

Boarding

8.4

Comfort

8.3

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 South Korea 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 South Korea?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from South Korea to Seattle.

  • How popular is this South Korea to Seattle flight route?

    Within the past month, 1 users have taken a look at flights from South Korea to Seattle/Tacoma Intl.

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

    $414 is the cheapest one-way deal found within the past few days, from Hainan Airlines. You may also be able to find cheap deals on WestJet and EVA Air, with prices starting from $429 and $542, respectively.

  • What are the most popular routes from South Korea to Seattle?

    The most popular flight routes from South Korea to Seattle are Incheon Intl - Seattle/Tacoma Intl, Busan Gimhae - Seattle/Tacoma Intl and Seoul Gimpo Intl - Seattle/Tacoma Intl.

  • What are the most reliable airlines from South Korea to Seattle?

    No one likes to see their flight delayed. When booking a flight from South Korea to Seattle consider choosing Delta (61%), Korean Air (61%) or Thai Airways (43%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from South Korea to Seattle?

    Looking for the cheapest flight from South Korea to Seattle? While on average our users pay $1,667, our data indicates the cheapest price to be $485. The most popular route (Incheon Intl - Seattle/Tacoma Intl), is priced around $474.

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

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

  • How can I find direct flights from South Korea to Seattle?

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

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

    Yes. Cheapflights offers flight deals from South Korea 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 South Korea to Seattle?

    Currently, January is the cheapest month in which you can book a flight from South Korea to Seattle (average of $238). Flying from South Korea to Seattle in June is currently the most expensive (average of $389). 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
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Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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Alternative routes for South Korea to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from South Korea to Seattle

Discover the top 5 airlines that operate flights from South Korea 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$474Average$752FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$516Average$646FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$517Average$913FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$536Average$777FlexibilityNo cancel feeOn-time76%
DeltaCheapest$638Average$896FlexibilityNo cancel feeOn-timeN/A

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