Seattle

$386+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SEA
May 6 — May 131
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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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$436
(WhyPayMore)

One-way from

$386
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$866

Good round-trip deal

$662 or less

Good one-way deal

$585 or less
Provider with most accurate pricing for Seoul (SEL)-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Seoul (SEL)-Seattle/Tacoma Intl flights.
From South Korea to Seattle/Tacoma Intl
One-way flight from South Korea to Seattle/Tacoma Intl
Highest demand for flights based on searches. 24% potential increase in price ($295 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Average for round-trip flights in May 2025
Price to beat on a round-trip flight from South Korea to Seattle/Tacoma Intl.
Price to beat on a one-way flight from South Korea to Seattle/Tacoma Intl.

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 May 1, 2025.

This WhyPayMore deal was found by Cheapflights users on 4/30. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/236:20 pmICN - SEA
Nonstop10h 10mAsiana Airlines
Sun 6/12:15 pmSEA - ICN
Nonstop11h 40mAsiana Airlines
Deal found 4/30$436
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/44:40 pmICN - SEA
Nonstop10h 00mKorean Air
Thu 5/1512:50 pmSEA - ICN
Nonstop11h 50mKorean Air
Deal found 4/29$456
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/174:50 pmICN - SEA
2 stops37h 10mUnited Airlines
Sat 9/67:34 pmSEA - ICN
1 stop27h 26mUnited Airlines
Deal found 4/30$462
This Tourvis deal was found by Cheapflights users on 4/30. 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 Tourvis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/136:20 pmICN - SEA
Nonstop10h 10mMultiple Airlines
Wed 5/214:00 pmSEA - ICN
1 stop20h 20mMultiple Airlines
Deal found 4/30$550
This Gotogate deal was found by Cheapflights users on 4/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/105:45 pmICN - SEA
1 stop12h 31mAir Canada
Wed 9/2410:00 amSEA - ICN
1 stop14h 05mAir Canada
Deal found 4/30$553
This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 5/144:00 pmICN - SEA
1 stop16h 08mDelta
Tue 5/2012:50 pmSEA - ICN
Nonstop11h 50mDelta
Deal found 4/30$557
This Mytrip deal was found by Cheapflights users on 4/28. 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 5/2310:40 amPUS - SEA
1 stop16h 00mKorean Air
Mon 8/251:20 pmSEA - PUS
1 stop14h 15mKorean Air
Deal found 4/28$563
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/48:45 amPUS - SEA
2 stops23h 23mDelta
Wed 6/111:20 pmSEA - PUS
1 stop15h 25mDelta
Deal found 4/29$733
This Gotogate deal was found by Cheapflights users on 4/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:50 pmGMP - SEA
2 stops38h 36mANA
Wed 10/294:40 pmSEA - GMP
1 stop26h 40mANA
Deal found 4/30$818
This Gotogate deal was found by Cheapflights users on 4/29. 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.
Tue 6/1710:20 amPUS - SEA
1 stop25h 10mChina Airlines
Mon 6/301:40 amSEA - PUS
1 stop25h 20mChina Airlines
Deal found 4/29$870
This EVA Air deal was found by Cheapflights users on 4/29. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/191:50 pmGMP - SEA
1 stop21h 40mEVA Air
Thu 10/161:30 amSEA - GMP
1 stop19h 20mEVA Air
Deal found 4/29$874
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/47:30 amPUS - SEA
2 stops21h 00mMultiple Airlines
Wed 6/112:15 pmSEA - PUS
2 stops28h 05mMultiple Airlines
Deal found 4/29$941

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 May 1, 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

Fri 5/23

6:20 pm-12:30 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Sun 6/1

2:15 pm-5:55 pm

Nonstop11h 40m

$436

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 5/15

4:40 pm-10:40 am

Nonstop10h 00m

Seattle/Tacoma Intl

Sun 5/18

12:50 pm-4:40 pm

Nonstop11h 50m

$457

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Sat 5/17

4:50 pm-2:00 pm

2 stops37h 10m

Seattle/Tacoma Intl

Sat 9/6

7:34 pm-3:00 pm

1 stop27h 26m

$462

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 5/13

6:20 pm-12:30 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Wed 5/21

4:00 pm-4:20 am

1 stop20h 20m

$550

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 9/10

5:45 pm-2:16 pm

1 stop12h 31m

Seattle/Tacoma Intl

Wed 9/24

10:00 am-4:05 pm

1 stop14h 05m

$553

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 5/14

4:00 pm-6:50 pm

1 stop18h 50m

Seattle/Tacoma Intl

Wed 5/21

12:50 pm-4:40 pm

Nonstop11h 50m

$557

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Fri 5/23

10:40 am-10:40 am

1 stop16h 00m

Seattle/Tacoma Intl

Mon 8/25

1:20 pm-7:35 pm

1 stop14h 15m

$563

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Wed 6/4

8:45 am-4:08 pm

2 stops23h 23m

Seattle/Tacoma Intl

Wed 6/11

1:20 pm-8:45 pm

1 stop15h 25m

$733

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Sun 10/26

7:50 pm-6:26 pm

2 stops38h 36m

Seattle/Tacoma Intl

Wed 10/29

4:40 pm-11:20 am

1 stop26h 40m

$818

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Tue 6/17

10:20 am-7:30 pm

1 stop25h 10m

Seattle/Tacoma Intl

Mon 6/30

1:40 am-7:00 pm

1 stop25h 20m

$870

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 39 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 July is currently the most expensive (average of $405). 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 May 1, 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 May 1, 2025.

The most flights from KR0 to SEA are scheduled on a Monday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 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 May 1, 2025.
See what other customers who have flown with EVA Air, Korean Air and Japan Airlines from South Korea to Seattle have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
8.3
Very good

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

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?

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

    $522 is the cheapest one-way deal found within the past few days, from Asiana Airlines. You may also be able to find cheap deals on WestJet and EVA Air, with prices starting from $524 and $531, respectively.

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

  • 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 (58%), Korean Air (58%) or Thai Airways (34%) 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 $1,235, our data indicates the cheapest price to be $455. The most popular route (Incheon Intl - Seattle/Tacoma Intl), is priced around $452.

  • 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 July is currently the most expensive (average of $405). 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 South Korea?

Book flights to South Korea if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Lynnwood
Aberdeen
Shelton
Silverdale
Redmond
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from South Korea to Seattle

Discover the top 6 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$474Average$752FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$515Average$1,049FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$516Average$860FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$538Average$718FlexibilityNo cancel feeOn-time71%
Asiana AirlinesCheapest$641Average$985FlexibilityNo cancel feeOn-time76%
DeltaCheapest$667Average$1,078FlexibilityNo cancel feeOn-timeN/A

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