HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$352+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SEA
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
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 April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$431
(WhyPayMore)

One-way from

$352
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$968

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.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Seattle/Tacoma Intl flights.
Search Deals
From Seoul (SEL) to Washington
Search Deals
One-way flight from Seoul (SEL) to Washington
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($278 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 1, 2025.

This WhyPayMore deal was found by Cheapflights users on 4/1. 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.
Wed 9/105:45 pmICN - SEA
1 stop12h 31mAir Canada
Fri 9/1910:00 amSEA - ICN
1 stop14h 05mAir Canada
Deal found 4/1$431
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.
Fri 10/105:45 pmICN - PDX
1 stop13h 01mAir Canada
Sun 10/1910:00 amPDX - ICN
1 stop14h 05mAir Canada
Deal found 3/31$463
This United Airlines deal was found by Cheapflights users on 4/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/24:50 pmICN - SEA
1 stop31h 36mUnited Airlines
Sun 4/67:15 amSEA - ICN
1 stop29h 05mUnited Airlines
Deal found 4/1$474
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 WhyPayMore deal was found by Cheapflights users on 4/1. 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 5/236:20 pmICN - SEA
Nonstop10h 10mAsiana Airlines
Sun 6/12:15 pmSEA - ICN
Nonstop11h 40mAsiana Airlines
Deal found 4/1$598
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:50 pmICN - PDX
1 stop16h 34mMultiple Airlines
Fri 11/147:50 pmPDX - ICN
2 stops28h 15mMultiple Airlines
Deal found 3/31$603
This WhyPayMore deal was found by Cheapflights users on 4/1. 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.
Thu 11/135:50 pmICN - SEA
2 stops41h 35mMultiple Airlines
Fri 11/215:45 amSEA - ICN
1 stop18h 20mMultiple Airlines
Deal found 4/1$621
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 FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:55 amGMP - SEA
1 stop18h 30mJapan Airlines
Wed 9/178:37 amSEA - GMP
2 stops21h 13mJapan Airlines
Deal found 3/30$819
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.
Thu 4/174:50 pmICN - PDX
1 stop19h 19mUnited Airlines
Thu 4/2410:21 amPDX - ICN
1 stop25h 59mUnited Airlines
Deal found 3/31$848
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.
Tue 4/157:20 pmICN - PDX
1 stop20h 36mDelta
Thu 4/249:12 amPDX - ICN
1 stop15h 18mDelta
Deal found 3/31$852

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 April 1, 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

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 9/10

5:45 pm-2:16 pm

1 stop12h 31m

Seattle/Tacoma Intl

Wed 9/24

7:15 pm-4:05 pm

1 stop28h 50m

$431

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 5/30

7:20 pm-1:35 pm

Nonstop10h 15m

Seattle/Tacoma Intl

Sun 7/27

1:20 pm-4:40 pm

Nonstop11h 20m

$470

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 4/17

4:50 pm-12:58 am

1 stop24h 08m

Seattle/Tacoma Intl

Wed 4/30

3:24 pm-3:00 pm

1 stop31h 36m

$475

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Thu 5/15

5:45 pm-9:30 am

1 stop31h 45m

Portland

Thu 5/22

6:15 am-4:05 pm

1 stop17h 50m

$485

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 5/6

6:20 pm-12:30 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Tue 5/13

2:15 pm-5:55 pm

Nonstop11h 40m

$605

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 9/11

10:40 am-2:16 pm

2 stops19h 36m

Seattle/Tacoma Intl

Wed 9/17

5:45 am-4:05 pm

1 stop18h 20m

$628

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Wed 4/23

4:40 pm-10:40 am

Nonstop10h 00m

Seattle/Tacoma Intl

Wed 5/14

6:15 am-5:20 pm

1 stop19h 05m

$652

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Tue 6/3

5:45 pm-6:35 pm

2 stops16h 50m

Portland

Tue 6/10

10:00 am-4:05 pm

1 stop14h 05m

$677

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 9/10

7:55 pm-2:25 pm

1 stop34h 30m

Seattle/Tacoma Intl

Wed 9/24

4:30 pm-11:05 am

1 stop26h 35m

$768

SeoulSeattle

GMP - SEA

GMPSEA

Seoul Gimpo Intl

Wed 9/10

7:55 am-10:25 am

1 stop18h 30m

Seattle/Tacoma Intl

Wed 9/17

8:37 am-9:50 pm

2 stops21h 13m

$819

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 59 results
1
2
3
...
6

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 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 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 April 1, 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 April 1, 2025.

The most flights from SEL 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 April 1, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air and Japan Airlines from Seoul to Washington. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

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

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

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
1,052 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

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

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

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

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

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
724 reviews
EVA Air
8.4
Very good
1,170 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

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 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?

    $408 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 Air Canada, with prices starting from $415 and $492, 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 (53%), Korean Air (53%) or Etihad Airways (30%) 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 $500. On average you can expect to pay $2,169. The most popular route, (Incheon Intl - Seattle/Tacoma Intl), can usually be booked for $486.

  • 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 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

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 Los Angeles flights
Incheon Intl to Newark flights
Incheon Intl to Honolulu flights
Incheon Intl to LaGuardia flights
Incheon Intl to Seattle flights
Incheon Intl to Dallas/Fort Worth flights
Incheon Intl to San Francisco flights
Gimpo Intl to John F Kennedy Intl flights
Incheon Intl to Dulles Intl flights
Incheon Intl to O'Hare Intl flights
Gimpo Intl to Los Angeles flights
Incheon Intl to Hobby flights
Incheon Intl to Atlanta flights
Incheon Intl to Las Vegas flights
Gimpo Intl to San Francisco flights
Incheon Intl to Ontario flights
Gimpo Intl to Honolulu flights
Incheon Intl to George Bush Intcntl flights
Incheon Intl to Minneapolis flights
Incheon Intl to San Jose flights
Gimpo Intl to Newark flights
Incheon Intl to Boston flights
Incheon Intl to Detroit flights
Incheon Intl to Love Field flights
Incheon Intl to Santa Ana flights
Gimpo Intl to O'Hare Intl flights
Incheon Intl to Reagan-National flights
Incheon Intl to Midway flights
Incheon Intl to Nashville flights
Incheon Intl to Orlando flights
Busan to Honolulu flights
Incheon Intl to Baltimore flights
Incheon Intl to Tampa flights
Incheon Intl to Portland flights
Incheon Intl to Charlotte flights
Incheon Intl to Denver flights
Busan to John F Kennedy Intl flights
Incheon Intl to Oakland flights
Incheon Intl to San Diego flights
Incheon Intl to Burbank flights
Incheon Intl to Salt Lake City flights
Incheon Intl to Raleigh flights

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 April 1, 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$1,171FlexibilityNo cancel feeOn-time81%
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.