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$290+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SEA
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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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 November 3, 2025.

This Hanatour deal was found by Cheapflights users on 11/1. 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.
Thu 11/68:35 pmICN - SEA
Nonstop10h 20mHawaiian Airlines
Sat 11/151:45 pmSEA - ICN
Nonstop11h 50mHawaiian Airlines
Deal found 11/1$465
This Trip.com deal was found by Cheapflights users on 11/2. 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.
Mon 11/108:35 pmICN - SEA
Nonstop10h 20mHawaiian Airlines
Wed 11/261:40 pmSEA - ICN
Nonstop11h 55mHawaiian Airlines
Deal found 11/2$468
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Mon 11/38:35 pmICN - SEA
Nonstop10h 20mHawaiian Airlines
Sun 11/161:45 pmSEA - ICN
Nonstop11h 50mHawaiian Airlines
Deal found 11/1$478
This WhyPayMore deal was found by Cheapflights users on 11/2. 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 11/38:35 pmICN - SEA
Nonstop10h 20mHawaiian Airlines
Fri 11/71:45 pmSEA - ICN
Nonstop11h 50mHawaiian Airlines
Deal found 11/2$485
This Jetabroad deal was found by Cheapflights users on 10/31. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:35 pmICN - SEA
Nonstop10h 10mHawaiian Airlines
Wed 12/311:40 pmSEA - ICN
Nonstop11h 55mHawaiian Airlines
Deal found 10/31$489
This WhyPayMore deal was found by Cheapflights users on 11/1. 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 11/79:25 pmICN - SEA
1 stop18h 56mHawaiian Airlines
Sat 11/151:45 pmSEA - ICN
Nonstop11h 50mHawaiian Airlines
Deal found 11/1$490
This Gotogate deal was found by Cheapflights users on 11/1. 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 11/36:55 pmICN - SEA
1 stop17h 21mAir Canada
Sun 11/1610:05 amSEA - ICN
1 stop14h 05mAir Canada
Deal found 11/1$512
This Hanatour deal was found by Cheapflights users on 11/1. 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.
Sat 12/206:55 pmICN - SEA
1 stop12h 36mAir Canada
Sat 2/285:50 amSEA - ICN
1 stop17h 10mAir Canada
Deal found 11/1$516
This Hanatour deal was found by Cheapflights users on 11/2. 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 12/16:55 pmICN - PDX
1 stop31h 20mAir Canada
Tue 12/97:00 pmPDX - ICN
1 stop29h 10mAir Canada
Deal found 11/2$582
This YBTour deal was found by Cheapflights users on 11/2. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/208:35 pmICN - PDX
1 stop19h 24mHawaiian Airlines
Sat 12/271:51 pmPDX - ICN
1 stop35h 44mHawaiian Airlines
Deal found 11/2$590
This Jetabroad deal was found by Cheapflights users on 11/1. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:35 pmICN - PDX
1 stop29h 31mHawaiian Airlines
Fri 11/2810:30 pmPDX - ICN
1 stop27h 05mHawaiian Airlines
Deal found 11/1$604
This Hanatour deal was found by Cheapflights users on 11/1. 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.
Wed 12/175:55 pmICN - PDX
1 stop13h 45mAir Canada
Sat 2/287:00 pmPDX - ICN
1 stop29h 10mAir Canada
Deal found 11/1$613

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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$465
(Hanatour)

One-way from

$290
(Trip.com)

Popular in

August

Cheapest in

November

Average price

$573

Good round-trip deal

$533 or less

Good one-way deal

$407 or less
Provider with most accurate pricing for Seoul (SEL)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Seattle/Tacoma Intl flights.
Search Deals
From South Korea to Washington
Search Deals
One-way flight from South Korea to Washington
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from South Korea to Washington.
Search Deals
Price to beat on a one-way flight from South Korea to Washington.
Search Deals

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 November 3, 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

Mon 12/1

6:55 pm-9:15 am

1 stop31h 20m

Portland

Tue 12/9

7:00 pm-5:10 pm

1 stop29h 10m

$582

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Wed 12/17

5:55 pm-2:40 pm

1 stop13h 45m

Portland

Sat 2/28

7:00 pm-5:10 pm

1 stop29h 10m

$613

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Wed 4/29

8:35 pm-12:03 am

1 stop19h 28m

Portland

Sat 5/9

10:40 am-6:35 pm

1 stop15h 55m

$615

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 2/3

6:00 pm-9:12 pm

1 stop20h 12m

Seattle/Tacoma Intl

Tue 3/3

7:15 am-4:15 pm

1 stop16h 00m

$624

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 2/17

12:45 pm-3:41 pm

1 stop19h 56m

Seattle/Tacoma Intl

Thu 2/26

9:00 am-5:40 am

2 stops27h 40m

$624

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 3/9

5:00 pm-4:14 pm

1 stop15h 14m

Seattle/Tacoma Intl

Wed 3/18

8:55 am-4:40 am

2 stops27h 45m

$624

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 2/6

6:00 pm-11:30 am

1 stop34h 30m

Seattle/Tacoma Intl

Fri 2/13

7:15 am-4:15 pm

1 stop16h 00m

$624

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 2/2

6:00 pm-9:15 pm

2 stops20h 15m

Seattle/Tacoma Intl

Wed 2/11

12:25 pm-5:40 am

2 stops24h 15m

$624

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Thu 12/25

8:05 pm-8:36 pm

1 stop17h 31m

Portland

Sat 1/3

5:25 pm-4:30 pm

1 stop30h 05m

$629

IncheonSpokane

ICN - GEG

ICNGEG

Incheon Intl

Thu 2/5

8:05 pm-10:52 pm

1 stop19h 47m

Spokane

Mon 2/9

6:05 am-4:30 pm

1 stop17h 25m

$629

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

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, November is the cheapest month in which you can book a flight from South Korea to State of Washington (average of $340). Flying from South Korea to State of Washington in August is currently the most expensive (average of $670). 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 November 3, 2025.

It’s optimal to fly from South Korea to State of Washington at noon. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from South Korea to State of Washington?

Use this chart to determine the cheapest time to fly round-trip from South Korea to Washington. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their South Korea to State of Washington flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 3, 2025.

The most flights from KR0 to USWA are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (4 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 November 3, 2025.
Read reviews from past customers who have flown Korean Air, Asiana Airlines, and Alaska Airlines from South Korea to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,160 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,160 reviews
Korean Air
8.4
Very good
1,160 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.2
Very good
484 reviews
Korean Air
8.4
Very good
1,160 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Alaska Airlines
8.0
Very good
11,234 reviews
Korean Air
8.4
Very good
1,160 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Delta
7.9
Good
8,001 reviews
Korean Air
8.4
Very good
1,160 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air Canada
7.1
Good
10,397 reviews
Korean Air
8.4
Very good
1,160 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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.

  • How long is the flight from South Korea to State of Washington?

    Airlines like Air Canada, Alaska Airlines, and United Airlines fly from South Korea to State of Washington in about 19h 28m. The time it takes to get you to your destination can typically vary by up to 11h 52m. The distance from South Korea to State of Washington is about 5273 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, November is the cheapest month in which you can book a flight from South Korea to State of Washington (average of $340). Flying from South Korea to State of Washington in August is currently the most expensive (average of $670). 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 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$469Average$675FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$470Average$882FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$472Average$727FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$476Average$556FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$485Average$866FlexibilityNo cancel feeOn-time85%
DeltaCheapest$606Average$695FlexibilityNo cancel feeOn-timeN/A

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