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$352+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SEA
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$447
(Mytrip)

One-way from

$352
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$670

Good round-trip deal

$733 or less

Good one-way deal

$552 or less
Provider with most accurate pricing for Seoul (SEL)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Seoul (SEL)-Seattle/Tacoma Intl flights.
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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. 23% potential increase in price ($278 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 31, 2025.

This WhyPayMore deal was found by Cheapflights users on 3/31. 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.
Mon 5/125:45 pmICN - SEA
1 stop12h 28mAir Canada
Fri 5/1610:00 amSEA - ICN
1 stop14h 05mAir Canada
Deal found 3/31$432
This WhyPayMore deal was found by Cheapflights users on 3/31. 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.
Fri 4/47:20 pmICN - SEA
Nonstop10h 10mKorean Air
Sun 4/612:40 pmSEA - ICN
Nonstop11h 50mKorean Air
Deal found 3/31$447
This WhyPayMore deal was found by Cheapflights users on 3/31. 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 9/165:45 pmICN - PDX
1 stop13h 01mAir Canada
Sun 9/217:40 pmPDX - ICN
1 stop28h 25mAir Canada
Deal found 3/31$469
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 4/224:50 pmICN - SEA
1 stop24h 08mUnited Airlines
Sun 4/275:15 amSEA - ICN
1 stop17h 45mUnited Airlines
Deal found 3/31$475
This Delta deal was found by Cheapflights users on 3/31. 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.
Fri 4/47:20 pmICN - SEA
Nonstop10h 10mDelta
Sun 4/66:15 amSEA - ICN
1 stop19h 05mDelta
Deal found 3/31$567
This Flightnetwork deal was found by Cheapflights users on 3/30. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1410:40 amPUS - PDX
2 stops24h 05mMultiple Airlines
Wed 5/2110:10 amPDX - PUS
2 stops29h 35mMultiple Airlines
Deal found 3/30$571
This Air Canada deal was found by Cheapflights users on 3/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/235:45 pmICN - PDX
2 stops18h 51mMultiple Airlines
Mon 9/296:15 amPDX - ICN
1 stop17h 50mMultiple Airlines
Deal found 3/29$578
This Air Canada deal was found by Cheapflights users on 3/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/125:45 pmICN - SEA
1 stop12h 28mMultiple Airlines
Fri 8/2910:00 amSEA - ICN
2 stops19h 10mMultiple Airlines
Deal found 3/30$594
This WhyPayMore deal was found by Cheapflights users on 3/30. 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.
Mon 4/146:20 pmICN - SEA
Nonstop10h 10mAsiana Airlines
Wed 5/72:15 pmSEA - ICN
Nonstop11h 40mAsiana Airlines
Deal found 3/30$635
This Korean Air deal was found by Cheapflights users on 3/31. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/144:30 pmPUS - SEA
1 stop34h 10mKorean Air
Thu 4/1712:40 pmSEA - PUS
1 stop14h 55mKorean Air
Deal found 3/31$663
This Gotogate deal was found by Cheapflights users on 3/31. 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.
Sun 10/267:50 pmGMP - SEA
1 stop34h 30mANA
Wed 10/2910:35 amSEA - GMP
2 stops19h 55mANA
Deal found 3/31$759
This Delta deal was found by Cheapflights users on 3/31. 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.
Sun 5/1110:40 amPUS - SEA
1 stop18h 55mDelta
Wed 5/146:15 amSEA - PUS
2 stops33h 30mDelta
Deal found 3/31$768

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 March 31, 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

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Tue 9/16

5:45 pm-2:46 pm

1 stop13h 01m

Portland

Sun 9/21

7:40 pm-4:05 pm

1 stop28h 25m

$469

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 5/12

5:45 pm-2:13 pm

1 stop12h 28m

Seattle/Tacoma Intl

Thu 5/29

7:15 pm-4:05 pm

1 stop28h 50m

$469

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 5/30

7:20 pm-1:35 pm

Nonstop10h 15m

Seattle/Tacoma Intl

Sun 6/8

12:55 pm-4:30 pm

Nonstop11h 35m

$471

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Sat 5/31

11:30 am-6:32 pm

1 stop23h 02m

Seattle/Tacoma Intl

Tue 7/1

7:00 am-3:00 pm

1 stop16h 00m

$514

BusanPortland

PUS - PDX

PUSPDX

Busan Gimhae

Wed 5/14

10:40 am-6:45 pm

2 stops24h 05m

Portland

Wed 5/21

10:10 am-7:45 am

2 stops29h 35m

$571

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Tue 9/23

5:45 pm-8:36 pm

2 stops18h 51m

Portland

Mon 9/29

6:15 am-4:05 pm

1 stop17h 50m

$578

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 5/12

5:45 pm-2:13 pm

1 stop12h 28m

Seattle/Tacoma Intl

Fri 8/29

10:00 am-9:10 pm

2 stops19h 10m

$594

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 5/26

7:20 pm-1:35 pm

Nonstop10h 15m

Seattle/Tacoma Intl

Thu 9/25

6:15 am-5:20 pm

1 stop19h 05m

$609

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 4/14

6:20 pm-12:30 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Wed 5/7

2:15 pm-5:55 pm

Nonstop11h 40m

$635

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Mon 4/14

4:30 pm-10:40 am

1 stop34h 10m

Seattle/Tacoma Intl

Thu 4/17

12:40 pm-7:35 pm

1 stop14h 55m

$663

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 60 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 July is currently the most expensive (average of $411). 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 March 31, 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 March 31, 2025.

The most flights from KR0 to USWA are scheduled on a Monday (8 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 Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington 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 State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, 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 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 March 31, 2025.
Get a feel of what it's like to fly with EVA Air, Korean Air and Japan Airlines from South Korea to Washington by reading reviews from past customers. 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
1,170 reviews

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,170 reviews
EVA Air
8.4
Very good
1,170 reviews

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very good
1,051 reviews
EVA Air
8.4
Very good
1,170 reviews

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,170 reviews

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
ANA
8.3
Very good
831 reviews
EVA Air
8.4
Very good
1,170 reviews

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
China Airlines
8.2
Very good
723 reviews
EVA Air
8.4
Very good
1,170 reviews

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

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 $405 on Hainan Airlines. Other airlines that offer cheap prices include WestJet from $408 and Air Canada from $466 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 July is currently the most expensive (average of $411). 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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Top 6 airlines flying from South Korea to Washington

Discover the top 6 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$516Average$874FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$538Average$718FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$595Average$779FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$643Average$998FlexibilityNo cancel feeOn-time76%
DeltaCheapest$667Average$1,138FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$680Average$1,144FlexibilityNo cancel feeOn-time81%
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