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$445+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SEL
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$908
(Delta)

One-way from

$445
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$1,027

Good round-trip deal

$749 or less

Good one-way deal

$436 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Seoul (SEL) flights.
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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. 18% potential increase in price ($282 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Delta deal was found by Cheapflights users on 2/18. 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 3/177:23 amPDX - ICN
1 stop16h 52mDelta
Mon 3/248:05 pmICN - PDX
1 stop19h 54mDelta
Deal found 2/18$908
This United Airlines deal was found by Cheapflights users on 2/18. 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.
Sun 4/135:00 amPDX - ICN
2 stops31h 20mUnited Airlines
Wed 4/1611:30 amICN - PDX
2 stops27h 44mUnited Airlines
Deal found 2/18$912
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
Thu 3/68:55 pmPDX - ICN
1 stop30h 35mMultiple Airlines
Tue 3/181:20 pmICN - PDX
2 stops35h 46mMultiple Airlines
Deal found 2/19$918
This Gotogate deal was found by Cheapflights users on 2/20. 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 4/71:10 amSEA - ICN
1 stop26h 25mChina Airlines
Tue 4/2212:35 pmICN - SEA
1 stop22h 55mChina Airlines
Deal found 2/20$936
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
Tue 3/43:48 pmSEA - ICN
2 stops35h 42mMultiple Airlines
Wed 4/212:50 pmICN - SEA
1 stop22h 11mMultiple Airlines
Deal found 2/20$942
This Gotogate deal was found by Cheapflights users on 2/20. 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.
Tue 4/227:00 amGEG - ICN
2 stops36h 55mChina Eastern
Tue 4/2912:55 pmICN - GEG
2 stops48h 54mChina Eastern
Deal found 2/20$962
This Air Canada deal was found by Cheapflights users on 2/20. 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.
Sun 4/67:05 pmSEA - ICN
1 stop29h 00mAir Canada
Thu 4/105:45 pmICN - SEA
1 stop16h 43mAir Canada
Deal found 2/20$966
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Sun 9/281:30 amSEA - ICN
1 stop17h 30mEVA Air
Mon 10/1312:00 pmICN - SEA
1 stop23h 30mEVA Air
Deal found 2/20$979
This KAYAK deal was found by Cheapflights users on 2/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:00 amGEG - GMP
2 stops36h 00mChina Eastern
Tue 4/298:50 pmGMP - GEG
2 stops40h 59mChina Eastern
Deal found 2/20$994
This FlightHub deal was found by Cheapflights users on 2/20. 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 3/57:00 pmSEA - ICN
1 stop30h 20mTurkish Airlines
Wed 3/1910:45 amICN - SEA
1 stop47h 20mTurkish Airlines
Deal found 2/20$1,007
This oojo deal was found by Cheapflights users on 2/18. 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 3/175:37 pmPDX - ICN
2 stops28h 18mCathay Pacific
Mon 3/243:00 pmICN - PDX
2 stops33h 32mCathay Pacific
Deal found 2/18$1,033
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
Tue 4/222:13 pmGEG - ICN
1 stop37h 37mMultiple Airlines
Tue 4/292:50 pmICN - GEG
2 stops47h 39mMultiple Airlines
Deal found 2/20$1,038

Find flights from Washington to Seoul within your budget

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 February 20, 2025.

Fly from

Washington

Fly to

Seoul

Route

Depart

Return

Price

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 3/17

7:23 am-4:15 pm

1 stop16h 52m

Incheon Intl

Mon 3/24

8:05 pm-11:59 pm

1 stop19h 54m

$908

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 4/13

5:00 am-4:20 am

2 stops31h 20m

Incheon Intl

Wed 4/16

11:30 am-11:14 pm

2 stops27h 44m

$912

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 3/6

8:55 pm-8:30 pm

1 stop30h 35m

Incheon Intl

Tue 3/18

1:20 pm-9:06 am

2 stops35h 46m

$918

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 4/18

7:00 am-7:50 pm

1 stop20h 50m

Incheon Intl

Sun 4/20

1:30 pm-1:25 pm

2 stops39h 55m

$932

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 4/7

1:10 am-7:35 pm

1 stop26h 25m

Incheon Intl

Tue 4/22

12:35 pm-7:30 pm

1 stop22h 55m

$938

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 4/5

11:30 am-6:45 pm

2 stops39h 15m

Incheon Intl

Sat 4/12

8:45 pm-2:21 pm

1 stop33h 36m

$955

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Tue 4/8

10:30 am-4:05 pm

1 stop13h 35m

Incheon Intl

Tue 4/22

5:45 pm-10:03 pm

1 stop20h 18m

$962

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

Tue 4/22

7:00 am-11:55 am

2 stops36h 55m

Incheon Intl

Tue 4/29

12:55 pm-9:49 pm

2 stops48h 54m

$962

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 4/16

1:30 am-11:00 am

1 stop17h 30m

Incheon Intl

Thu 5/15

7:45 pm-7:30 pm

1 stop15h 45m

$994

SpokaneSeoul

GEG - GMP

GEGGMP

Spokane

Tue 4/22

7:00 am-11:00 am

2 stops36h 00m

Seoul Gimpo Intl

Tue 4/29

8:50 pm-9:49 pm

2 stops40h 59m

$994

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 59 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.

Travel insights for flights from Washington to Seoul

Get recent, data-driven insights about flights from Washington to Seoul including ideal travel times, pricing trends, and more.

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 $1,036). Flying from State of Washington to Seoul in June is currently the most expensive (average of $1,697). 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 February 20, 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 February 20, 2025.

The most flights from USWA to SEL are scheduled on a Wednesday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 February 20, 2025.
Read through reviews of airlines operating flights from Washington to Seoul, such as EVA Air, Korean Air and ANA. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

EVA Air
8.4
Very good
1,200 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Korean Air
8.4
Very good
1,037 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

ANA
8.4
Very good
842 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

China Airlines
8.2
Very good
727 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

Food

8.0

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

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 $477. However, be on the lookout for offers from United Airlines and China Airlines, 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 (76%), Etihad Airways (67%) or Korean Air (56%) 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 $1,566, our data shows the cheapest flight currently is $357. When looking at the most popular route, (Seattle/Tacoma Intl - Incheon Intl), you can expect to pay $844 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 $1,036). Flying from State of Washington to Seoul in June is currently the most expensive (average of $1,697). 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 9 airlines flying from Washington to Seoul

Discover the top 9 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$600Average$813FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$769Average$1,477FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$849Average$986FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$856Average$956FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$936Average$1,265FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$969Average$1,608FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$970Average$1,249FlexibilityNo cancel feeOn-time77%
DeltaCheapest$982Average$1,451FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$986Average$1,078FlexibilityNo cancel feeOn-time74%
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