HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$364+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
Jul 30 — Aug 61
Wed 7/30
Wed 8/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seoul to Washington with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 25, 2025.

Round-trip from

$496
(WhyPayMore)

One-way from

$364
(Kiwi.com)

Popular in

August

Cheapest in

June

Average price

$844

Good round-trip deal

$633 or less

Good one-way deal

$631 or less
From Seoul (SEL) to Washington
Search Deals
One-way flight from Seoul (SEL) to Washington
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($90 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Seoul (SEL) to Washington.
Search Deals
Price to beat on a one-way flight from Seoul (SEL) to Washington.
Search Deals

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 July 25, 2025.

This WhyPayMore deal was found by Cheapflights users on 7/22. 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.
Sat 10/258:35 pmICN - PDX
1 stop33h 15mHawaiian Airlines
Sun 11/27:30 amPDX - ICN
1 stop18h 05mHawaiian Airlines
Deal found 7/22$496
This Hawaiian Airlines deal was found by Cheapflights users on 7/24. 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.
Wed 10/299:25 pmICN - SEA
1 stop16h 12mHawaiian Airlines
Wed 11/121:45 pmSEA - ICN
Nonstop11h 50mHawaiian Airlines
Deal found 7/24$515
This Alaska Airlines deal was found by Cheapflights users on 7/24. 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.
Mon 11/108:35 pmICN - SEA
Nonstop10h 20mAlaska Airlines
Tue 11/185:20 amSEA - ICN
2 stops21h 05mAlaska Airlines
Deal found 7/24$516
This WhyPayMore deal was found by Cheapflights users on 7/23. 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 12/169:00 pmICN - SEA
Nonstop9h 55mAsiana Airlines
Sun 1/412:10 amSEA - ICN
Nonstop12h 10mAsiana Airlines
Deal found 7/23$518
This WhyPayMore deal was found by Cheapflights users on 7/22. 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 05mAlaska Airlines
Sun 10/1910:35 amPDX - ICN
1 stop16h 00mAlaska Airlines
Deal found 7/22$528
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Mon 11/1012:45 pmICN - SEA
1 stop27h 30mUnited Airlines
Wed 11/263:48 pmSEA - ICN
2 stops20h 52mUnited Airlines
Deal found 7/22$539
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Thu 10/305:00 pmICN - PDX
2 stops21h 56mUnited Airlines
Thu 11/64:02 pmPDX - ICN
2 stops31h 13mUnited Airlines
Deal found 7/22$557
This Gotogate deal was found by Cheapflights users on 7/22. 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.
Thu 9/115:45 pmICN - PDX
1 stop13h 01mAir Canada
Sun 9/217:40 pmPDX - ICN
1 stop28h 25mAir Canada
Deal found 7/22$568
This Gotogate deal was found by Cheapflights users on 7/23. 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 9/2910:40 pmICN - PDX
1 stop26h 41mMultiple Airlines
Sat 10/47:40 pmPDX - ICN
1 stop17h 00mMultiple Airlines
Deal found 7/23$661
This Delta deal was found by Cheapflights users on 7/24. 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.
Mon 8/187:20 pmICN - PDX
1 stop31h 14mDelta
Sat 10/2511:10 amPDX - ICN
1 stop37h 20mDelta
Deal found 7/24$707
This oojo deal was found by Cheapflights users on 7/23. 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.
Fri 9/2612:40 pmICN - PDX
1 stop16h 44mAsiana Airlines
Fri 9/267:35 pmPDX - ICN
1 stop16h 55mAsiana Airlines
Deal found 7/23$735
This Korean Air deal was found by Cheapflights users on 7/22. 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.
Wed 8/207:20 pmICN - GEG
1 stop13h 29mKorean Air
Wed 8/279:15 amGEG - ICN
1 stop15h 15mKorean Air
Deal found 7/22$770

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 July 25, 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

Sat 10/25

8:35 pm-1:50 pm

1 stop33h 15m

Portland

Sun 11/2

7:30 am-6:35 pm

1 stop18h 05m

$496

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 10/29

9:25 pm-9:37 pm

1 stop16h 12m

Seattle/Tacoma Intl

Wed 11/12

1:45 pm-6:35 pm

Nonstop11h 50m

$515

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 11/10

8:35 pm-1:55 pm

Nonstop10h 20m

Seattle/Tacoma Intl

Tue 11/18

5:20 am-7:25 pm

2 stops21h 05m

$516

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 12/16

9:00 pm-1:55 pm

Nonstop9h 55m

Seattle/Tacoma Intl

Sun 1/4

12:10 am-5:20 am

Nonstop12h 10m

$518

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

$528

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 11/10

12:45 pm-11:15 pm

1 stop27h 30m

Seattle/Tacoma Intl

Wed 11/26

3:48 pm-5:40 am

2 stops20h 52m

$539

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Thu 10/30

5:00 pm-10:56 pm

2 stops21h 56m

Portland

Thu 11/6

4:02 pm-4:15 pm

2 stops31h 13m

$557

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Thu 9/11

5:45 pm-2:46 pm

1 stop13h 01m

Portland

Sun 9/21

7:40 pm-4:05 pm

1 stop28h 25m

$568

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Mon 9/29

10:40 pm-9:21 am

1 stop26h 41m

Portland

Sat 10/4

7:40 pm-4:40 am

1 stop17h 00m

$661

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Mon 8/18

7:20 pm-10:34 am

1 stop31h 14m

Portland

Sat 10/25

11:10 am-4:30 pm

1 stop37h 20m

$707

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 38 results
1
2
3
4

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, January is the cheapest month in which you can book a flight from Seoul to State of Washington (average of $238). Flying from Seoul 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 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 July 25, 2025.

When flying from Seoul to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 25, 2025.

The most flights from SEL to USWA are scheduled on a Thursday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 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 July 25, 2025.
Peruse reviews from past customers who have flown with EVA Air, Korean Air, and ANA 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.
EVA Air
8.4
Very good
1,220 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.1

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

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.1

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
1,114 reviews
EVA Air
8.4
Very good
1,220 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.1

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
921 reviews
EVA Air
8.4
Very good
1,220 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.1

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
1,529 reviews
EVA Air
8.4
Very good
1,220 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.1

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
Asiana Airlines
8.2
Very good
463 reviews
EVA Air
8.4
Very good
1,220 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Overall

8.4

Food

8.1

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 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.

  • What are the cheapest airlines to fly from Seoul to State of Washington one-way?

    $402 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Hainan Airlines and Alaska Airlines, with prices starting from $413 and $516, respectively.

  • 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 Delta (61%), Korean Air (61%) or Thai Airways (43%) 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 $544. On average you can expect to pay $1,689. The most popular route, (Incheon Intl - Seattle/Tacoma Intl), can usually be booked for $477.

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seoul to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to John F Kennedy Intl flights
Incheon Intl to Newark flights
Incheon Intl to LaGuardia flights
Incheon Intl to O'Hare Intl flights
Incheon Intl to Honolulu flights
Incheon Intl to Los Angeles flights
Incheon Intl to Dulles Intl flights
Gimpo Intl to Honolulu flights
Incheon Intl to San Francisco flights
Gimpo Intl to John F Kennedy Intl flights
Incheon Intl to Seattle flights
Incheon Intl to Dallas/Fort Worth flights
Incheon Intl to Atlanta flights
Gimpo Intl to Los Angeles flights
Incheon Intl to Orlando flights
Incheon Intl to Ontario flights
Incheon Intl to Boston flights
Incheon Intl to Detroit flights
Incheon Intl to Las Vegas flights
Gimpo Intl to San Francisco flights
Busan to Seattle flights
Gimpo Intl to Newark flights
Incheon Intl to Santa Ana flights
Incheon Intl to Midway flights
Incheon Intl to San Jose flights
Incheon Intl to Baltimore flights
Incheon Intl to Miami flights
Incheon Intl to Portland flights
Incheon Intl to White Plains flights
Gimpo Intl to O'Hare Intl flights
Incheon Intl to Reagan-National flights
Gimpo Intl to Boston flights
Incheon Intl to Love Field flights
Incheon Intl to Oakland flights
Busan to Honolulu flights
Incheon Intl to San Diego flights
Incheon Intl to Salt Lake City flights
Gimpo Intl to Atlanta flights
Gimpo Intl to Baltimore flights
Incheon Intl to Hobby flights
Incheon Intl to Burbank flights
Incheon Intl to Minneapolis flights
Incheon Intl to Austin flights
Incheon Intl to George Bush Intcntl flights

Top 5 airlines flying from Seoul to Washington

Discover the top 5 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 July 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$474Average$752FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$516Average$646FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$517Average$859FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$541Average$785FlexibilityNo cancel feeOn-time76%
DeltaCheapest$638Average$959FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.