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$385+ Cheap flights from Washington to Seoul (SEL)

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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SEL
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
1 adult, Economy
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Cheap flight deals from Washington to Seoul

Keep the following information in mind while searching for Washington to Seoul flight deals. Data was last updated July 2, 2025.

Round-trip from

$783
(Mytrip)

One-way from

$385
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,338

Good round-trip deal

$774 or less

Good one-way deal

$427 or less
From Washington to Seoul (SEL)
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One-way flight from Washington to Seoul (SEL)
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Highest demand for flights based on searches. 11% potential increase in price ($154 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Washington to Seoul (SEL).
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Price to beat on a one-way flight from Washington to Seoul (SEL).
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Find flight deals from Washington to Seoul

Cheapest flights from Washington to Seoul
Explore the most affordable flight options available from Washington to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:15 amPDX - ICN
2 stops20h 30mMultiple Airlines
Wed 9/1010:35 amICN - PDX
2 stops24h 11mMultiple Airlines
Deal found 7/1$783
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2810:00 amSEA - ICN
1 stop14h 05mMultiple Airlines
Sat 9/610:40 amICN - SEA
2 stops19h 36mMultiple Airlines
Deal found 7/1$828
This Air Canada deal was found by Cheapflights users on 7/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:15 pmSEA - ICN
1 stop28h 50mAir Canada
Mon 12/16:55 pmICN - SEA
1 stop12h 31mAir Canada
Deal found 7/2$836
This Gotogate deal was found by Cheapflights users on 7/1. 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.
Fri 9/261:15 pmSEA - ICN
2 stops37h 30mWestJet
Fri 10/108:45 pmICN - SEA
1 stop32h 14mWestJet
Deal found 7/1$848
This oojo deal was found by Cheapflights users on 6/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/131:10 amSEA - ICN
1 stop26h 25mChina Airlines
Tue 10/2812:25 pmICN - SEA
1 stop22h 50mChina Airlines
Deal found 6/30$870
This American Airlines deal was found by Cheapflights users on 6/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/111:59 pmPDX - ICN
1 stop23h 31mAmerican Airlines
Sat 9/135:25 pmICN - PDX
1 stop20h 02mAmerican Airlines
Deal found 6/30$911
This Air Canada deal was found by Cheapflights users on 6/30. 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.
Wed 9/310:00 amPDX - ICN
1 stop14h 05mAir Canada
Tue 9/165:45 pmICN - PDX
1 stop17h 01mAir Canada
Deal found 6/30$925
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:20 amSEA - GMP
2 stops35h 40mChina Eastern
Thu 9/188:50 pmGMP - SEA
2 stops36h 09mChina Eastern
Deal found 7/1$936
This Orbitz deal was found by Cheapflights users on 6/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2210:05 amSEA - GMP
2 stops35h 50mMultiple Airlines
Fri 11/289:00 amGMP - SEA
2 stops30h 06mMultiple Airlines
Deal found 6/30$948
This oojo deal was found by Cheapflights users on 6/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/32:30 pmPDX - ICN
2 stops28h 45mChina Airlines
Tue 9/1612:35 pmICN - PDX
2 stops27h 40mChina Airlines
Deal found 6/30$999
This Delta deal was found by Cheapflights users on 6/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/226:10 amGEG - ICN
1 stop17h 20mDelta
Sun 11/308:05 pmICN - GEG
1 stop21h 13mDelta
Deal found 6/30$1,001
This Delta deal was found by Cheapflights users on 6/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:15 amPDX - ICN
1 stop17h 15mDelta
Mon 10/67:20 pmICN - PDX
1 stop13h 46mDelta
Deal found 6/30$1,011

Cheapflights Fare Finder

Customize your flight search to find flights from Washington to Seoul 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 2, 2025.
Use the filters below to find and compare flights from Washington to Seoul that are best for you.

Fly from

Washington

Fly to

Seoul

Route

Depart

Return

Price

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/3

6:15 am-6:45 pm

2 stops20h 30m

Incheon Intl

Wed 9/10

10:35 am-6:46 pm

2 stops24h 11m

$783

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 8/28

10:00 am-4:05 pm

1 stop14h 05m

Incheon Intl

Sat 9/6

10:40 am-2:16 pm

2 stops19h 36m

$828

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 10/20

7:15 pm-4:05 pm

1 stop28h 50m

Incheon Intl

Mon 12/1

6:55 pm-2:26 pm

1 stop12h 31m

$836

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 9/26

1:15 pm-6:45 pm

2 stops37h 30m

Incheon Intl

Fri 10/10

8:45 pm-12:59 pm

1 stop32h 14m

$848

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 10/13

1:10 am-7:35 pm

1 stop26h 25m

Incheon Intl

Tue 10/28

12:25 pm-7:15 pm

1 stop22h 50m

$870

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 9/1

11:59 pm-3:30 pm

1 stop23h 31m

Incheon Intl

Sat 9/13

5:25 pm-9:27 pm

1 stop20h 02m

$911

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/3

10:00 am-4:05 pm

1 stop14h 05m

Incheon Intl

Tue 9/16

5:45 pm-6:46 pm

1 stop17h 01m

$925

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 9/15

7:20 am-11:00 am

2 stops35h 40m

Seoul Gimpo Intl

Thu 9/18

8:50 pm-4:59 pm

2 stops36h 09m

$936

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Sat 11/22

10:05 am-2:55 pm

2 stops35h 50m

Seoul Gimpo Intl

Fri 11/28

9:00 am-10:06 pm

2 stops30h 06m

$948

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/3

2:30 pm-11:15 am

2 stops28h 45m

Incheon Intl

Tue 9/16

12:35 pm-12:15 am

2 stops27h 40m

$999

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 60 results
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Best time to book a flight from Washington to Seoul

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

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

Currently, February is the cheapest month in which you can book a flight from State of Washington to Seoul (average of $998). Flying from State of Washington to Seoul in December is currently the most expensive (average of $1,635). 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 WA to SEL?

Find hourly flight availability from Washington to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 2, 2025.

When flying from State of Washington to Seoul, 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 State of Washington to Seoul

Explore weekly flight availability from Washington to Seoul. 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 2, 2025.

The most flights from USWA to SEL are scheduled on a Tuesday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated July 2, 2025.
See what other customers who have flown with EVA Air, ANA, and Japan Airlines from Washington to Seoul have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

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
1,214 reviews
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

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
892 reviews
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

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
1,505 reviews
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

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
China Airlines
8.3
Very good
747 reviews
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

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
Delta
8.0
Very good
7,975 reviews
EVA Air
8.4
Very good
1,214 reviews

Crew

8.6

Overall

8.4

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

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 Washington to Seoul. 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 State of Washington to Seoul flight route?

    Flights from Washington to Seoul have been viewed 200 times in the past calendar month.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $418. However, be on the lookout for offers from Air Canada and EVA Air, as they are both options that can get you from State of Washington to Seoul for a low price.

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

    When deciding which route to take from State of Washington to Seoul consider Seattle/Tacoma Intl - Incheon Intl, Seattle/Tacoma Intl - Seoul Gimpo Intl or Portland - Incheon Intl as they are the most popular.

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

    Consider Delta (73%), Korean Air (69%) or Thai Airways (32%) when booking your flight. These represent the most reliable airlines when flying from State of Washington to Seoul.

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

    While on average a flight from State of Washington to Seoul is generally $2,127, our data shows the cheapest flight currently is $365. When looking at the most popular route, (Seattle/Tacoma Intl - Incheon Intl), you can expect to pay $667 for that flight.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from State of Washington to Seoul (average of $998). Flying from State of Washington to Seoul in December is currently the most expensive (average of $1,635). 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 Washington to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington to Seoul

Discover the top 10 airlines that operate flights from Washington to Seoul. 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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$167Average$1,267FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$182Average$1,099FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$657Average$974FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$763Average$1,550FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$814Average$917FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$886Average$1,057FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$908Average$1,182FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$966Average$1,552FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$970Average$1,207FlexibilityNo cancel feeOn-time77%
EVA AirCheapest$978Average$1,089FlexibilityNo cancel feeOn-time74%

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