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$380+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SEL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 29, 2025.

Round-trip from

$720
(Air Canada)

One-way from

$380
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$1,334

Good round-trip deal

$739 or less

Good one-way deal

$379 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. 12% potential increase in price ($165 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($33 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 29, 2025.

This Air Canada deal was found by Cheapflights users on 7/29. 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 9/157:40 pmPDX - ICN
1 stop28h 25mMultiple Airlines
Wed 10/159:45 amICN - PDX
2 stops25h 01mMultiple Airlines
Deal found 7/29$720
This Gotogate deal was found by Cheapflights users on 7/27. 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 8/217:40 amPDX - ICN
1 stop19h 20mHawaiian Airlines
Wed 9/39:25 pmICN - PDX
1 stop34h 58mHawaiian Airlines
Deal found 7/27$788
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 8/169:40 pmPDX - ICN
2 stops29h 20mAlaska Airlines
Fri 8/229:25 pmICN - PDX
2 stops35h 06mAlaska Airlines
Deal found 7/28$791
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:00 amPDX - ICN
1 stop14h 05mAir Canada
Wed 10/155:45 pmICN - PDX
1 stop13h 01mAir Canada
Deal found 7/28$828
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Fri 8/292:30 pmSEA - ICN
Nonstop11h 25mMultiple Airlines
Sun 9/76:20 pmICN - SEA
2 stops36h 06mMultiple Airlines
Deal found 7/28$830
This Asiana Airlines deal was found by Cheapflights users on 7/29. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/182:15 pmSEA - ICN
Nonstop11h 40mAsiana Airlines
Fri 9/266:20 pmICN - SEA
Nonstop10h 10mAsiana Airlines
Deal found 7/29$831
This CrystalTravel deal was found by Cheapflights users on 7/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2912:55 pmSEA - ICN
Nonstop11h 35mKorean Air
Sat 9/67:20 pmICN - SEA
Nonstop10h 20mKorean Air
Deal found 7/28$833
This Air Canada deal was found by Cheapflights users on 7/27. 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.
Sat 8/307:15 pmSEA - ICN
1 stop28h 50mAir Canada
Mon 9/85:45 pmICN - SEA
1 stop20h 31mAir Canada
Deal found 7/27$835
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 9/172:50 pmSEA - ICN
Nonstop11h 45mAlaska Airlines
Fri 10/318:35 pmICN - SEA
Nonstop10h 20mAlaska Airlines
Deal found 7/29$842
This United Airlines deal was found by Cheapflights users on 7/29. 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 9/11:45 pmPDX - ICN
1 stop22h 35mUnited Airlines
Sat 9/274:50 pmICN - PDX
1 stop21h 55mUnited Airlines
Deal found 7/29$861
This Hawaiian Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 11/201:45 pmSEA - ICN
Nonstop11h 50mHawaiian Airlines
Sat 11/298:35 pmICN - SEA
Nonstop10h 10mHawaiian Airlines
Deal found 7/29$863
This oojo deal was found by Cheapflights users on 7/26. 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 10/288:15 pmICN - SEA
1 stop14h 55mChina Airlines
Deal found 7/26$870

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 29, 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

Mon 9/15

7:40 pm-4:05 pm

1 stop28h 25m

Incheon Intl

Wed 10/15

9:45 am-6:46 pm

2 stops25h 01m

$720

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 8/21

7:40 am-7:00 pm

1 stop19h 20m

Incheon Intl

Wed 9/3

9:25 pm-4:23 pm

1 stop34h 58m

$788

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sat 8/16

9:40 pm-7:00 pm

2 stops29h 20m

Incheon Intl

Fri 8/22

9:25 pm-4:31 pm

2 stops35h 06m

$791

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 9/15

10:00 am-4:05 pm

1 stop14h 05m

Incheon Intl

Wed 10/15

5:45 pm-2:46 pm

1 stop13h 01m

$828

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 8/29

2:30 pm-5:55 pm

Nonstop11h 25m

Incheon Intl

Sun 9/7

6:20 pm-2:26 pm

2 stops36h 06m

$830

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 9/18

2:15 pm-5:55 pm

Nonstop11h 40m

Incheon Intl

Fri 9/26

6:20 pm-12:30 pm

Nonstop10h 10m

$831

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 8/29

12:55 pm-4:30 pm

Nonstop11h 35m

Incheon Intl

Sat 9/6

7:20 pm-1:40 pm

Nonstop10h 20m

$833

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 8/30

7:15 pm-4:05 pm

1 stop28h 50m

Incheon Intl

Mon 9/8

5:45 pm-10:16 pm

1 stop20h 31m

$835

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 9/17

2:50 pm-6:35 pm

Nonstop11h 45m

Incheon Intl

Fri 10/31

8:35 pm-2:55 pm

Nonstop10h 20m

$842

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 9/1

7:45 am-3:00 pm

1 stop15h 15m

Incheon Intl

Mon 9/29

4:50 pm-2:42 pm

1 stop13h 52m

$861

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 29, 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 29, 2025.

The most flights from USWA to SEL are scheduled on a Monday (8 on average). You will have fewer flight options on Wednesday, 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 29, 2025.
See what other customers who have flown with EVA Air, Korean Air, and ANA 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
1,221 reviews

Overall

8.4

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

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
1,221 reviews
EVA Air
8.4
Very good
1,221 reviews

Overall

8.4

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

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
Korean Air
8.4
Very good
1,121 reviews
EVA Air
8.4
Very good
1,221 reviews

Overall

8.4

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

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
922 reviews
EVA Air
8.4
Very good
1,221 reviews

Overall

8.4

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

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
1,535 reviews
EVA Air
8.4
Very good
1,221 reviews

Overall

8.4

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

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
754 reviews
EVA Air
8.4
Very good
1,221 reviews

Overall

8.4

Crew

8.6

Comfort

8.3

Food

8.1

Boarding

8.4

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 $414. However, be on the lookout for offers from Asiana Airlines and Korean 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 (77%), Korean Air (71%) or Thai Airways (38%) 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 $1,971, our data shows the cheapest flight currently is $350. When looking at the most popular route, (Seattle/Tacoma Intl - Incheon Intl), you can expect to pay $766 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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Midway to Incheon Intl flights

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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$167Average$1,242FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$182Average$1,099FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$282Average$865FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$763Average$1,550FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$812Average$907FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$886Average$1,070FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$901Average$1,153FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$954Average$1,529FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$978Average$1,090FlexibilityNo cancel feeOn-time74%
Turkish AirlinesCheapest$1,007Average$1,217FlexibilityNo cancel feeOn-time77%

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