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$290+ Cheap flights from Seoul (SEL) 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.
SEL — SEA
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Seoul to Washington

Keep the following information in mind while searching for Seoul 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

$560 or less

Good one-way deal

$403 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 Seoul (SEL) to Washington
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One-way flight from Seoul (SEL) to Washington
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Highest demand for flights based on searches. 6% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Seoul (SEL) to Washington.
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Price to beat on a one-way flight from Seoul (SEL) to Washington.
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Find flight deals from Seoul to Washington

Cheapest flights from Seoul to Washington
Explore the most affordable flight options available from Seoul 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

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seoul 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 Seoul to Washington that are best for you.

Fly from

Seoul

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 Seoul to Washington

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

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

Currently, November is the cheapest month in which you can book a flight from Seoul to State of Washington (average of $340). Flying from Seoul 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 SEL to WA?

Find hourly flight availability from Seoul 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.

When flying from Seoul to State of Washington, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 46% versus a flight at noon.

Weekly flight availability from Seoul to State of Washington

Explore weekly flight availability from Seoul 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 SEL to USWA are scheduled on a Sunday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from Seoul to State of Washington?

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.
Peruse reviews from past customers who have flown with Korean Air, Asiana Airlines, and Alaska Airlines from Seoul to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,158 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

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
1,158 reviews
Korean Air
8.4
Very good
1,158 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

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
1,158 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

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
11,232 reviews
Korean Air
8.4
Very good
1,158 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

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
7,999 reviews
Korean Air
8.4
Very good
1,158 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

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!!
Hawaiian Airlines
7.8
Good
2,799 reviews
Korean Air
8.4
Very good
1,158 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

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 Seoul 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 Seoul to State of Washington flight route?

    Within the past month, 1 users have taken a look at flights from Seoul to Washington.

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

    Departing from Seoul to State of Washington will take you 19h 28m. Seoul and State of Washington are separated by a distance of 5273 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Seoul to State of Washington?

    The most popular route from Seoul to State of Washington is Incheon Intl - Seattle/Tacoma Intl. You may also consider Seoul Gimpo Intl - Seattle/Tacoma Intl or Incheon Intl - Portland.

  • What are the most reliable airlines from Seoul to State of Washington?

    No one likes to see their flight delayed. When booking a flight from Seoul to State of Washington consider choosing Alaska Airlines (79%), Delta (65%) or Korean Air (65%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seoul to State of Washington?

    The cheapest flight price from Seoul to State of Washington is $264. On average you can expect to pay $1,385. The most popular route, (Incheon Intl - Seattle/Tacoma Intl), can usually be booked for $352.

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

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

  • How can I find direct flights from Seoul to Washington?

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Seoul to State of Washington (average of $340). Flying from Seoul 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.

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Alternative routes for Seoul 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 Seoul to Washington

Discover the top 6 airlines that operate flights from Seoul 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$468Average$679FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$470Average$743FlexibilityNo 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$618Average$721FlexibilityNo cancel feeOn-timeN/A

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