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$333+ Cheap flights from South Korea to Washington

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
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheap flight deals from South Korea to Washington

Keep the following information in mind while searching for South Korea to Washington flight deals. Data was last updated August 1, 2025.

Round-trip from

$504
(Alaska Airlines)

One-way from

$333
(Kiwi.com)

Popular in

August

Cheapest in

June

Average price

$885

Good round-trip deal

$623 or less

Good one-way deal

$621 or less
From South Korea to Washington
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One-way flight from South Korea to Washington
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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 August 2025
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Price to beat on a round-trip flight from South Korea to Washington.
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Price to beat on a one-way flight from South Korea to Washington.
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Find flight deals from South Korea to Washington

Cheapest flights from South Korea to Washington
Explore the most affordable flight options available from South Korea to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:35 pmICN - SEA
Nonstop10h 10mAlaska Airlines
Sat 9/272:50 pmSEA - ICN
Nonstop11h 45mAlaska Airlines
Deal found 7/30$504
This WhyPayMore 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:25 pmICN - PDX
1 stop17h 05mHawaiian Airlines
Sun 10/1910:35 amPDX - ICN
1 stop16h 00mHawaiian Airlines
Deal found 7/30$506
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.
Mon 9/229:25 pmICN - SEA
1 stop24h 54mHawaiian Airlines
Thu 10/22:50 pmSEA - ICN
Nonstop11h 45mHawaiian Airlines
Deal found 7/30$509
This WhyPayMore deal was found by Cheapflights users on 7/31. 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.
Tue 9/96:20 pmICN - SEA
Nonstop10h 10mAsiana Airlines
Tue 9/302:15 pmSEA - ICN
Nonstop11h 40mAsiana Airlines
Deal found 7/31$518
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 10/315:00 pmICN - SEA
2 stops21h 30mUnited Airlines
Thu 11/1312:41 pmSEA - ICN
2 stops23h 59mUnited Airlines
Deal found 7/31$519
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:35 pmICN - PDX
1 stop19h 21mAlaska Airlines
Fri 1/167:40 amPDX - ICN
1 stop17h 55mAlaska Airlines
Deal found 7/30$539
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:25 pmICN - PDX
1 stop33h 27mAmerican Airlines
Tue 9/2312:04 pmPDX - ICN
1 stop35h 26mAmerican Airlines
Deal found 7/31$596
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.
Fri 9/1911:30 amICN - PDX
1 stop23h 02mUnited Airlines
Sun 9/2811:55 pmPDX - ICN
2 stops36h 25mUnited Airlines
Deal found 7/29$611
This Delta deal was found by Cheapflights users on 7/31. 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 9/117:20 pmICN - PDX
1 stop20h 32mDelta
Sat 9/201:40 pmPDX - ICN
1 stop34h 50mDelta
Deal found 7/31$623
This oojo deal was found by Cheapflights users on 7/31. 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.
Sun 12/214:10 pmPUS - SEA
1 stop14h 45mMultiple Airlines
Tue 12/3012:10 amSEA - PUS
1 stop15h 00mMultiple Airlines
Deal found 7/31$638
This Gotogate deal was found by Cheapflights users on 7/31. 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 11/1010:50 pmICN - PDX
1 stop27h 25mMultiple Airlines
Sat 11/153:15 pmPDX - ICN
1 stop20h 30mMultiple Airlines
Deal found 7/31$662
This Mytrip deal was found by Cheapflights users on 7/31. 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 9/248:55 pmICN - PDX
1 stop15h 42mAsiana Airlines
Tue 10/147:35 pmPDX - ICN
1 stop16h 55mAsiana Airlines
Deal found 7/31$672

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Korea to Washington 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 1, 2025.
Use the filters below to find and compare flights from South Korea to Washington that are best for you.

Fly from

South Korea

Fly to

Washington

Route

Depart

Return

Price

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 9/25

8:35 pm-2:45 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Sun 9/28

2:50 pm-6:35 pm

Nonstop11h 45m

$504

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Fri 10/10

9:25 pm-10:30 pm

1 stop17h 05m

Portland

Sun 10/19

10:35 am-6:35 pm

1 stop16h 00m

$506

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 9/22

9:25 pm-7:54 am

1 stop26h 29m

Seattle/Tacoma Intl

Sat 9/27

2:50 pm-6:35 pm

Nonstop11h 45m

$509

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 9/9

6:20 pm-12:30 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Tue 9/30

2:15 pm-5:55 pm

Nonstop11h 40m

$518

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 10/31

5:00 pm-10:30 pm

2 stops21h 30m

Seattle/Tacoma Intl

Thu 11/13

12:41 pm-5:40 am

2 stops23h 59m

$519

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Sun 12/28

8:35 pm-10:56 pm

1 stop19h 21m

Portland

Fri 1/16

7:40 am-6:35 pm

1 stop17h 55m

$539

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Thu 9/11

5:25 pm-10:52 am

1 stop33h 27m

Portland

Tue 9/23

12:04 pm-3:30 pm

1 stop35h 26m

$596

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Fri 9/19

11:30 am-6:32 pm

1 stop23h 02m

Portland

Sun 9/28

11:55 pm-4:20 am

2 stops36h 25m

$611

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Thu 9/11

7:20 pm-11:52 pm

1 stop20h 32m

Portland

Sat 9/20

1:40 pm-4:30 pm

1 stop34h 50m

$623

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Sun 12/21

4:10 pm-1:55 pm

1 stop14h 45m

Seattle/Tacoma Intl

Tue 12/30

12:10 am-8:10 am

1 stop15h 00m

$638

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 47 results
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Best time to book a flight from South Korea to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington 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 Washington

What is the cheapest month to book a flight from South Korea to State of Washington?

Currently, January is the cheapest month in which you can book a flight from South Korea to State of Washington (average of $238). Flying from South Korea to State of Washington 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 WA?

Find hourly flight availability from South Korea to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 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 State of Washington as you normally would.

Weekly flight availability from South Korea to State of Washington

Explore weekly flight availability from South Korea to Washington. 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 1, 2025.

The most flights from KR0 to USWA are scheduled on a Wednesday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated August 1, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air, and ANA from South Korea to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,220 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

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
1,220 reviews
EVA Air
8.4
Very good
1,220 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

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
1,121 reviews
EVA Air
8.4
Very good
1,220 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

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
8.4
Very good
922 reviews
EVA Air
8.4
Very good
1,220 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

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
1,536 reviews
EVA Air
8.4
Very good
1,220 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

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
754 reviews
EVA Air
8.4
Very good
1,220 reviews

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Food

8.1

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 South Korea to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this South Korea to State of Washington flight route?

    This flight path from South Korea to Washington 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 to fly from South Korea to State of Washington one-way?

    One-way options have recently been found by users for as low as $393 on WestJet. Other airlines that offer cheap prices include Alaska Airlines from $483 and EVA Air from $539 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from South Korea to Washington 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 State of Washington?

    Currently, January is the cheapest month in which you can book a flight from South Korea to State of Washington (average of $238). Flying from South Korea to State of Washington 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

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Alternative routes for South Korea to Washington

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 Washington

Discover the top 5 airlines that operate flights from South Korea to Washington. 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 1, 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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